Senior Cat Care Guide – What Your Old Cat Needs by Age

Cats are considered seniors at age 11 and geriatric at age 15. Nutritional needs, veterinary visit frequency, and health screening requirements all shift significantly across those years. Starting targeted senior care at age 11 can add years to your cat’s healthy life.

When Is a Cat Actually “Senior”?

Cats officially enter their senior years at age 11, according to the American Association of Feline Practitioners (AAFP). The AAFP uses a three-stage classification system: mature (ages 7 to 10), senior (ages 11 to 14), and geriatric (age 15 and older). Each stage carries distinct care needs that go well beyond simply buying “senior formula” kibble.

The comparison between cat years and human years helps contextualize urgency. A 15-year-old cat is roughly equivalent to a 76-year-old human. That framing matters because many owners delay specialized care, not realizing how quickly feline aging accelerates after age 10.

Age-by-Age Care Breakdown

Senior cats move through three life stages with distinct care priorities: mature (ages 7 to 10), senior (ages 11 to 14), and geriatric (age 15 and older), each requiring a different level of veterinary and home care.

Cat Years to Human Years: A Practical Conversion Chart

A 15-year-old cat is roughly equivalent to a 76-year-old human, and a 20-year-old cat is comparable to a 96-year-old human. This conversion helps calibrate how aggressively to approach preventive care at each life stage.

The conversion is not linear. Cats age rapidly through their first two years (a 2-year-old cat is already roughly equivalent to a 24-year-old human), then aging slows to approximately 4 human years per cat year through middle age. After age 11, each cat year again carries increasing clinical weight.

The 11 to 12 Year Window: Catching Problems Early

At ages 11 to 12, the single highest-value action is scheduling twice-yearly veterinary exams instead of annual ones. This matters because hyperthyroidism (a condition where the thyroid gland produces too much hormone, disrupting metabolism and organ function) often appears during this window and is highly treatable when caught early.

Bloodwork at this stage should include a complete blood count, a chemistry panel covering kidney and liver values, and a T4 test specifically screening for thyroid hormone levels. The average cost for this senior wellness panel runs $150 to $300 depending on your region and whether your clinic processes labs in-house or sends them out.

Weight changes are the most visible early warning sign owners can track at home. A loss of more than 10% of body weight within six months warrants an immediate vet call, not a wait-and-see approach. Even small losses in a cat who was previously stable are clinically significant.

Dental disease affects an estimated 70% of cats by age 3, and by age 11 the cumulative damage can be severe enough to cause chronic pain and appetite suppression. A professional dental cleaning under anesthesia at this stage often resolves hidden pain that owners mistake for normal aging slowdown.

Nutrition Changes Your 11-Plus Cat Actually Needs

Senior cats need food that is higher in protein and lower in phosphorus than adult maintenance formulas. This combination supports muscle mass while reducing the load on kidneys that may already be showing early decline.

Look for foods where a named animal protein (chicken, salmon, turkey) appears as the first ingredient. Crude protein on the label should be at least 30% on a dry matter basis, meaning the percentage calculated after removing moisture content, which allows fair comparison between wet and dry foods.

Wet food is strongly preferred for seniors. It delivers approximately 70 to 80% moisture content, directly combating the chronic dehydration that accelerates kidney disease. Cats who eat exclusively dry kibble consume significantly less water overall, even when a water bowl is freely available.

Phosphorus restriction becomes critical once any kidney disease diagnosis is confirmed. Prescription renal diets (foods formulated specifically for kidney disease management, available only through veterinarians) cap phosphorus at levels well below over-the-counter senior foods. Do not start a prescription diet without a diagnosis, since the restricted nutrient profiles are inappropriate for healthy cats.

Caloric needs actually decrease for most cats in the 11 to 14 range. However, geriatric cats aged 15 and older often need increased calories again because aging guts absorb nutrients less efficiently. This reversal catches many owners off guard, especially those who have been restricting food to manage earlier middle-aged weight gain.

Arthritis: The Most Underdiagnosed Senior Cat Condition

Arthritis affects an estimated 90% of cats over age 12, yet fewer than 1 in 5 of those cats receives a diagnosis or treatment. The reason for this gap is that cats hide pain instinctively, and the behavioral signs of arthritis are easy to misread as normal aging.

Watch for these behavioral markers that signal joint pain rather than laziness:

• Reluctance to jump onto furniture the cat previously used without hesitation
• Choosing lower sleeping spots than before
• Reduced grooming of the lower back and tail base (areas difficult to reach when joints ache)
• Stiffness after rest, particularly in the morning
• Vocalization or flinching when touched along the spine

Veterinarians diagnose feline arthritis through physical examination and X-rays. Treatment options have expanded significantly since the 2022 FDA approval of frunevetmab (a monthly injectable medication targeting the protein that signals pain in cats, sold under the brand name Solensia). This was the first feline-specific osteoarthritis pain treatment ever approved.

Environmental modifications cost nothing and provide immediate relief. Placing a ramp or step stool next to the couch eliminates the jump that causes daily pain. Switching to a litter box with a low entrance (under 3 inches) removes a barrier that arthritic cats increasingly avoid, leading to house soiling that owners often blame on cognitive decline.

Kidney Disease: The Leading Cause of Death in Senior Cats

Chronic kidney disease (CKD), a progressive and irreversible loss of kidney filtering function, is the leading cause of death in cats over age 10, affecting an estimated 1 in 3 senior cats. Early diagnosis through bloodwork is genuinely life-extending because interventions started in Stage 1 or Stage 2 CKD can slow progression significantly.

The International Renal Interest Society (IRIS) staging system classifies CKD from Stage 1 (minimal loss, no symptoms) to Stage 4 (severe loss, crisis-level symptoms). Most cats are not diagnosed until Stage 2 or Stage 3 simply because Stage 1 produces no visible symptoms.

Creatinine and SDMA (symmetric dimethylarginine, a kidney biomarker that detects damage earlier than creatinine alone) are the two key numbers to watch in bloodwork. SDMA can flag kidney dysfunction up to 17 months earlier than creatinine in some cats, which is why its inclusion in senior panels is valuable.

Home management of diagnosed CKD includes:

1. Prescription low-phosphorus diet (reduces kidney workload)
2. Increased water intake through wet food and drinking fountains
3. Subcutaneous fluids at home if prescribed (saline solution given under the skin to supplement hydration, a technique most owners can learn to perform themselves)
4. Phosphate binders added to food if phosphorus remains elevated despite diet change
5. Blood pressure monitoring, since hypertension (high blood pressure) frequently accompanies CKD and causes additional organ damage

Hyperthyroidism: Treatable When Caught Early

Hyperthyroidism, a condition caused by a benign tumor on the thyroid gland that overproduces thyroid hormone, affects roughly 10% of cats over age 10. It is one of the most common senior cat diagnoses and, importantly, one of the most curable.

The classic presenting sign is a cat that eats more than ever while losing weight steadily.

Additional signs include increased vocalization (especially at night), hyperactivity despite advanced age, vomiting after eating, an elevated resting heart rate, and a scruffy unkempt coat.

Diagnosis requires only a blood T4 test, which is inexpensive and can be run in most clinics within the same appointment.

Treatment options by comparison:

Radioactive iodine is widely considered the gold standard treatment. It requires a 3 to 5 day hospitalization at a licensed facility while radiation levels decrease to safe levels, but results in a permanent cure in the vast majority of cases.

Diabetes in Senior Cats: Signs, Management, and Costs

Diabetes mellitus (a condition where the body cannot regulate blood sugar because it either produces insufficient insulin or cannot use insulin effectively) affects an estimated 1 in 230 cats, with the majority of diagnoses occurring in cats over age 8. Neutered male cats and overweight cats carry the highest risk.

The classic symptom cluster that warrants immediate bloodwork includes:

• Drinking noticeably more water than usual (called polydipsia, meaning excessive thirst)
• Urinating larger volumes more frequently (called polyuria, meaning excessive urination)
• Eating more than normal but losing weight simultaneously
• Weakness or wobbling in the hind legs (called diabetic neuropathy, nerve damage caused by persistently high blood sugar)
• Lethargy and a noticeably unkempt coat

Diabetes is diagnosed through blood glucose testing and a urinalysis (urine analysis) that checks for glucose in the urine. A single elevated blood glucose reading is not diagnostic on its own, since stress at a vet visit can temporarily elevate glucose. Vets typically confirm with a fructosamine test (a test measuring average blood sugar over the prior 2 to 3 weeks, unaffected by in-clinic stress).

Management requires twice-daily insulin injections at home, which most owners learn to administer within a few vet-supervised appointments. The ongoing cost of insulin, syringes, and monitoring supplies typically runs $50 to $150 per month.

Feline diabetes can go into remission (a state where the cat no longer requires insulin) in roughly 25 to 50% of cases when caught early and managed with a low-carbohydrate wet food diet. Dry kibble is high in carbohydrates and is generally contraindicated for diabetic cats regardless of whether it is labeled “diabetic” or “senior.”

Cognitive Dysfunction Syndrome in Cats Age 15 and Older

Cognitive dysfunction syndrome (CDS), the feline equivalent of dementia characterized by disorientation, memory loss, and altered sleep patterns, affects an estimated 50% of cats aged 15 and older. It is significantly underrecognized because symptoms overlap with other age-related conditions.

The DISHA framework helps owners document symptoms to bring to a vet:

• Disorientation: staring at walls, getting stuck in corners, appearing lost in familiar spaces
• Interactions changed: reduced interest in family members, increased clinginess, or new aggression
• Sleep/wake cycle disrupted: yowling at night, sleeping heavily during the day
• House soiling: missing the litter box without a physical explanation
• Activity changes: decreased play, increased aimless wandering

No cure exists for CDS, but several interventions slow progression. Environmental enrichment (puzzle feeders, window perches with outdoor views, short interactive play sessions) maintains neural activity. The supplement SAMe (S-adenosylmethionine, a naturally occurring compound that supports brain cell function) and the prescription medication selegiline have the most published support for feline cognitive decline, though evidence is more limited than in dogs.

Heart Disease in Senior Cats: What to Know

Hypertrophic cardiomyopathy (HCM), a condition where the heart muscle thickens and reduces the heart’s ability to pump blood efficiently, is the most common heart disease in cats and is frequently diagnosed in cats over age 10. HCM is often discovered incidentally during a routine exam when a veterinarian hears a heart murmur (an abnormal sound caused by turbulent blood flow).

Many cats with HCM have no outward symptoms for years. When symptoms do appear, they include labored or rapid breathing, open-mouth breathing, sudden weakness or paralysis in the hind legs, and extreme lethargy. Open-mouth breathing in a cat is always a medical emergency and requires immediate veterinary care, since cats are obligate nasal breathers and only breathe through the mouth under severe respiratory distress.

A cat with a detected heart murmur should be evaluated with an echocardiogram (an ultrasound examination of the heart that measures wall thickness and pumping function) performed by a veterinary cardiologist or a general practice vet with ultrasound capability. The grading scale for murmurs runs from Grade 1 (very faint, may not indicate disease) to Grade 6 (loud, associated with significant disease).

HCM management options by severity:

Cats with advanced HCM are at elevated risk for aortic thromboembolism (a blood clot that blocks circulation to the hind legs, causing sudden paralysis and severe pain, often called a “saddle thrombus”). This is one of the most urgent emergencies in feline medicine and requires immediate veterinary care.

Veterinary Visit Schedule by Age

Senior cats need 2 veterinary visits per year starting at age 11, increasing to 2 to 4 visits per year at age 15 and older. Cats mask illness effectively, so routine exams catch conditions that owners cannot detect at home.

Pain Management: What Owners Can and Cannot Give at Home

Over-the-counter pain medications safe for humans are toxic to cats without exception. Never give ibuprofen, acetaminophen (Tylenol), aspirin, or naproxen to a cat. Acetaminophen in particular causes fatal red blood cell damage in cats at doses as low as a single regular-strength tablet.

Veterinarian-prescribed options that are genuinely safe and effective include:

1. Buprenorphine (an opioid pain reliever given as an oral gel absorbed through the gums) for acute pain
2. Gabapentin (a nerve pain medication repurposed from human epilepsy treatment) for chronic pain and anxiety
3. Frunevetmab (Solensia) monthly injection for arthritis pain specifically
4. Meloxicam (a non-steroidal anti-inflammatory drug) at feline-specific doses for short-term use, with kidney monitoring required

The only truly safe at-home pain support is environmental: warmth (a self-heating pad rather than an electric one to avoid burns), soft bedding, reduced need to jump, and calm, low-stress surroundings.

Senior Cat Not Eating: When to Act and When to Wait

A senior cat that refuses food for more than 24 to 36 hours warrants a same-day or next-day vet call, not a wait-and-see approach. Cats are uniquely vulnerable to hepatic lipidosis (fatty liver disease, a life-threatening condition that develops when a cat stops eating and the body mobilizes fat to the liver faster than the liver can process it). This condition can develop in as little as 48 to 72 hours of not eating, particularly in overweight cats.

Common causes of appetite loss in senior cats, ordered by frequency of diagnosis:

1. Dental pain (broken teeth, periodontal disease, oral tumors): the most common cause and the first to rule out
2. Nausea from kidney disease, medications, or gastrointestinal disease
3. Hyperthyroidism (paradoxically, early-stage hyperthyroid cats eat more; advanced cases may eat less)
4. Respiratory or nasal congestion (cats rely heavily on smell to trigger appetite; a stuffed nose removes that trigger)
5. Cancer (particularly lymphoma, the most common cancer in senior cats)
6. Cognitive decline (cats with CDS may forget to eat or lose interest)
7. Stress or environmental change (new pet, new home, loss of a companion)

Warming wet food to approximately body temperature (around 99 to 100 degrees Fahrenheit) intensifies the aroma and often stimulates reluctant eaters. A small amount of low-sodium chicken broth (no onion or garlic, both of which are toxic to cats) drizzled over food achieves a similar effect.

Why Is My Senior Cat Drinking So Much Water?

Increased water consumption in a senior cat is a symptom, not a behavior change to ignore. The three most common causes are chronic kidney disease, hyperthyroidism, and diabetes mellitus, all of which are diagnosable through a single blood and urine panel.

A practical way to gauge whether intake is genuinely elevated is to measure it. Normal water intake for a cat is approximately 3.5 to 4.5 ounces (100 to 135 ml) per 5 pounds of body weight per day. A cat consistently drinking well above this range on a wet food diet, or noticeably more than before on any diet, has a clinical reason that needs investigation.

Diabetes insipidus (a rare hormonal disorder unrelated to blood sugar diabetes, in which the kidneys cannot concentrate urine, causing extreme thirst and dilute urine) is a less common but possible cause in senior cats. It is distinguishable from other causes through a specific urine concentration test called a urine specific gravity measurement.

Do not restrict water access in an attempt to manage excessive drinking. The underlying disease is driving the thirst, and restricting water while it is undiagnosed accelerates organ damage.

Is My Senior Cat Sleeping Too Much? What Is Normal?

Senior cats sleep between 16 and 20 hours per day, which is more than younger adults but within the normal range for the age group. The concern is not total sleep duration but changes in sleep quality, location, and accompanying behavior.

Signs that increased sleep signals a problem rather than normal aging:

• Previously active cat now spends nearly all waking hours lying still
• Difficulty rising after sleep (stiffness, stumbling, reluctance to stand)
• Sleeping in unusual locations such as behind the toilet or inside closets (a sign of illness-driven hiding behavior)
• Not waking for mealtimes or responding to familiar sounds
• Sleep accompanied by labored breathing, twitching, or vocalizing

A cat that sleeps more but still engages during awake periods, eats normally, grooms adequately, and uses the litter box without issue is likely within the normal aging spectrum. A cat that is both sleeping more and withdrawing from interaction or showing any of the above signs needs a vet evaluation.

Senior Cat Enrichment: Keeping an Aging Cat Mentally Active

Daily mental and physical enrichment slows cognitive dysfunction progression and reduces stress-related illness in senior cats, with sessions as short as 5 to 10 minutes twice daily providing measurable benefit.

Effective enrichment adapted for senior cat mobility and energy levels:

Keep play sessions short. Senior cats tire faster and may develop post-exercise stiffness. 5 to 10 minutes of engaged play twice daily is more beneficial than a single long session that causes soreness.

Warning Signs That Always Need a Vet Visit

Any of the symptoms listed below requires a veterinarian call within 24 hours, because by the time a symptom is visible in a senior cat, the underlying condition is typically already advanced.

Seek same-day or emergency care for:

• Open-mouth breathing or gasping at rest
• Sudden hind leg weakness, paralysis, or dragging (possible blood clot)
• Collapse or inability to stand
• Seizures
• Suspected poisoning

Schedule a vet visit within 24 to 48 hours for:

• Not eating for more than 24 hours
• Vomiting more than 2 to 3 times in 24 hours
• No urination in 24 hours (potential urinary blockage, more common in males)
• Visible straining in the litter box
• Sudden significant behavior change (hiding, aggression, extreme clinginess)
• Any new lump or bump that was not present at the last exam
• Unexplained weight loss of any amount within 4 to 6 weeks
• Eye changes including cloudiness, asymmetric pupils, or discharge

Photographing or video recording symptoms at home before the appointment gives the veterinarian information that may not be reproducible during an in-clinic exam, especially for intermittent symptoms like limping, vocalizing, or unusual gait.

Litter Box Setup for Arthritic and Geriatric Cats

Senior cats need a litter box that accommodates mobility limitations, and the standard high-sided box becomes a physical barrier that causes avoidance. The entry height should be no more than 2 to 3 inches for cats with arthritis.

Recommended litter box setup for seniors:

• Number of boxes: One per cat plus one extra, placed on every floor of the home
• Entry height: Under 3 inches; cut a lower entry into an existing box if needed
• Location: No stairs required to reach any box
• Litter type: Unscented, low-dust, soft-texture clumping litter (heavily scented litters deter some senior cats)
• Cleaning frequency: Once daily minimum; senior cats are more sensitive to soiled boxes

Geriatric cats with CDS may need a box visible from where they sleep, since spatial memory decline means they forget where the box is located.

Grooming Support for Cats Who Can No Longer Self-Groom

Self-grooming declines noticeably in cats with arthritis, obesity, or cognitive decline because reaching the full body requires joint flexibility that older cats lose. Owner-assisted grooming is not optional at this stage.

Daily gentle brushing with a soft-bristle brush or grooming glove removes loose fur and stimulates circulation. It also gives owners a regular opportunity to feel for new lumps, skin changes, or areas the cat flinches at when touched.

Mats (tangled clumps of fur that pull the skin) develop quickly on a neglected coat and cause genuine ongoing pain. Severe mats require professional groomer or veterinary removal, not attempts to cut them out at home with scissors, which risk cutting the skin.

Nail trims become more frequent needs in senior cats. Outdoor cats and younger cats wear down nails naturally, but indoor seniors often grow nails that curl and grow into the paw pad if not trimmed every 4 to 6 weeks. Most veterinary offices and groomers will trim nails for $10 to $20 per visit.

Quality of Life Assessment and End-of-Life Planning

The HHHHHMM scale, developed by veterinary oncologist Dr. Alice Villalobos, scores seven categories (Hurt, Hunger, Hydration, Hygiene, Happiness, Mobility, and More good days than bad) from 1 to 10 each, with a total score above 35 out of 70 indicating acceptable quality of life.

A score below 35 consistently across multiple assessments signals that palliative comfort goals should take priority over curative or life-extending interventions.

Discussing end-of-life preferences with your veterinarian before a crisis is one of the most valuable things owners of senior cats can do. In-home euthanasia services are available in most US metro areas and allow a cat to pass in a familiar, calm environment. Costs typically range from $200 to $450 depending on location and provider, compared to $100 to $250 at a clinic.

Do Senior Cats Still Need Vaccines?

Senior cats still need core vaccines, but the schedule changes after age 10. The rabies vaccine remains legally required in most US states regardless of age, and frequency depends on your state and the specific vaccine product used (1-year or 3-year formulation).

The FVRCP vaccine (a combination shot protecting against feline herpesvirus, calicivirus, and panleukopenia, often called the “distemper combo”) is recommended every 3 years for senior cats who received a full adult booster series. Annual boosters are no longer considered necessary for indoor cats with a documented vaccine history.

Non-core vaccines such as feline leukemia virus (FeLV) should be reassessed based on current lifestyle. An indoor-only cat with no outdoor exposure and no contact with other cats has minimal risk and may not need continued FeLV boosters. Discuss this with your veterinarian at each visit since a cat’s lifestyle can change.

Over-vaccination carries real risks for senior cats. Injection-site sarcoma (a rare but aggressive cancer that can develop at vaccine injection sites) is a documented concern, which is why the shift toward triennial (every three years) core vaccines for low-risk seniors represents a genuine safety improvement, not just convenience.

High Blood Pressure in Senior Cats

Hypertension (persistently elevated blood pressure) affects an estimated 20% of senior cats and frequently develops as a complication of kidney disease or hyperthyroidism. It is also classified as primary hypertension (with no underlying cause identified) in some cats.

Blood pressure in cats is measured using a Doppler or oscillometric device placed around the limb or tail, similar in concept to a human blood pressure cuff. A normal systolic reading is under 160 mmHg. Readings above 180 mmHg are considered severe and require immediate treatment.

Uncontrolled hypertension causes irreversible damage to the eyes, kidneys, heart, and brain without producing visible symptoms until late stages.

The most dramatic acute presentation is sudden blindness caused by retinal detachment. Cats brought in within 24 to 72 hours of onset sometimes regain partial vision after blood pressure is rapidly controlled, but the window closes quickly and most cats who wait longer do not recover sight.

Amlodipine (a calcium channel blocker, meaning a drug that relaxes blood vessel walls to reduce pressure) is the first-line treatment for feline hypertension. It is typically effective at doses of 0.625 to 1.25 mg once daily, and blood pressure response is usually visible within days of starting treatment.

Senior cats with kidney disease or hyperthyroidism should have blood pressure checked at every wellness visit, not just when symptoms appear. Silent hypertension is common and causes ongoing organ damage long before any visible sign develops.

Cancer in Senior Cats: What to Watch For

Cancer is one of the top three causes of death in cats over age 10, alongside kidney disease and cardiac disease. Approximately 1 in 5 cats will develop cancer in their lifetime, and risk increases substantially after age 10.

The most common feline cancers by type:

New lumps, bumps, or swellings should always be evaluated rather than monitored at home. Fine needle aspiration (a procedure where a small needle draws cells from a mass for microscopic examination, performed in most clinics without anesthesia) provides a rapid first answer at a typical cost of $50 to $150.

Weight loss combined with a palpable abdominal mass is a combination that warrants urgent evaluation, not a scheduled appointment. Intestinal lymphoma and other abdominal cancers often present this way and are diagnosed via ultrasound and biopsy.

Supplements That Have Evidence for Senior Cats

Six supplements have the most published support for specific senior cat conditions, and none of them are recommended for cats without a relevant diagnosis since several interact with medications or alter nutrient balance.

Never add supplements without discussing them with your veterinarian first. Some supplements interact with medications (omega-3s can affect platelet function, relevant if a cat is on clopidogrel), and some are inappropriate for specific conditions.

Hydration Strategies Beyond Switching to Wet Food

Six evidence-backed strategies increase a senior cat’s daily water intake without requiring a full diet change, and each addresses a different reason why cats resist drinking from a standard bowl.

1. Water fountains: Running water mimics natural water sources and attracts many cats who ignore still water. Stainless steel or ceramic fountains are easier to keep clean than plastic, which harbors bacteria in surface scratches.
2. Multiple water stations: Place water bowls in at least three locations throughout the home, away from the food bowl (cats instinctively avoid water near food in the wild).
3. Add water to food: Mix 1 to 2 tablespoons of warm water or low-sodium chicken broth (no onion, no garlic) into wet food to increase moisture content without switching foods.
4. Bowl material and size: Some cats avoid narrow bowls that cause whisker fatigue (discomfort when sensitive whiskers repeatedly touch the bowl sides). Wide, shallow bowls remove this barrier.
5. Temperature: Slightly warmed water is preferred by many senior cats, particularly those with dental sensitivity.
6. Subcutaneous fluids: For cats with diagnosed kidney disease, veterinarian-prescribed subcutaneous fluid administration at home delivers direct hydration that no bowl strategy can match.

Normal daily water intake for a cat is approximately 3.5 to 4.5 ounces per 5 pounds of body weight. A 10-pound cat should consume roughly 7 to 9 ounces of total fluid per day, including what is present in food.

Managing Weight in Both Directions

Overweight senior cats (ages 11 to 14) and underweight geriatric cats (age 15 and older) need opposite interventions, and the right approach depends entirely on the cat’s age, body condition score, and whether muscle wasting or fat accumulation is the primary problem.

For overweight senior cats (ages 11 to 14):

Excess weight worsens arthritis, increases diabetes risk, and stresses kidneys. Target a weight loss rate of no more than 0.5 to 1% of body weight per week. Faster weight loss in cats can trigger hepatic lipidosis (fatty liver disease, a life-threatening condition where the liver becomes overwhelmed by fat mobilized too rapidly during caloric restriction), even in cats that are genuinely overweight.

Use a measured portion approach rather than free-feeding. A kitchen food scale is more accurate than measuring cups. Your veterinarian can calculate a precise daily caloric target using the cat’s ideal body weight rather than current weight.

For underweight or muscle-wasting senior cats (ages 15 and older):

Sarcopenia (age-related muscle loss that occurs independently of caloric intake) is normal in geriatric cats but accelerates when protein intake is insufficient. Increasing dietary protein to 40% or higher on a dry matter basis helps preserve lean mass. Appetite stimulants such as mirtazapine (a medication that increases appetite by affecting serotonin receptors, available as a transdermal gel applied to the ear flap) are commonly prescribed for cats with reduced appetite.

Body condition scoring (a standardized 1 to 9 scale where 4 to 5 is ideal, below 3 indicates underweight, and above 6 indicates overweight) gives a consistent way to track changes between vet visits. Ask your veterinarian to demonstrate the scoring technique on your cat so you can assess it at home monthly.

Adopting a Senior Cat: What to Know Before You Bring One Home

Senior cats aged 11 and older are the least-adopted shelter population in the US, and the most practical pre-adoption step is budgeting $500 to $1,000 for an immediate veterinary evaluation and any conditions found at that first exam.

Request complete medical records before adopting any senior cat. At minimum, you want documentation of the most recent bloodwork, any diagnosed conditions, and current medications. Many shelters and rescue organizations cover pre-adoption veterinary workups and vaccinations, effectively delivering a cat whose baseline health status is already known.

Schedule a veterinary exam within 72 hours of bringing a senior cat home, regardless of what the shelter provided. An independent assessment establishes your own baseline, identifies any conditions the shelter exam may have missed, and starts the relationship with a vet who can track changes over time.

Budget for the possibility of finding an existing condition at that first exam. This is not a reason to avoid adopting a senior cat; it is simply a reason to have $500 to $1,000 in accessible funds before bringing one home.

The behavioral adjustment period for adult and senior cats is typically 2 to 4 weeks. Senior cats often bond deeply once settled, and many owners describe senior cat adoption as one of the most rewarding pet decisions they have made.

Estimated Annual Senior Cat Care Costs

Pet insurance premiums increase significantly after age 10, and most policies exclude pre-existing conditions. If insurance is being considered, enrolling during the mature stage (ages 7 to 10) before conditions develop is the financially sound approach.

Signs a Senior Cat Is Actively Dying

Cats in the active dying phase typically show a cluster of physical changes in the final 24 to 72 hours of life, including cold extremities, irregular breathing, pale gums, and complete refusal of food and water.

Physical signs that a cat is actively dying:

• Body temperature drops below normal; paws and ears feel cold
• Breathing becomes labored, irregular, or includes long pauses between breaths
• Gums and tongue turn pale, white, gray, or blue (indicating poor circulation or oxygenation)
• Complete refusal of food and water for 48 hours or more
• Inability to rise or reposition without assistance
• Loss of bladder or bowel control
• Unresponsive or minimally responsive to familiar voices or touch
• Cheyne-Stokes breathing pattern (a cycle of shallow breaths, deeper breaths, and then a pause that repeats)

A cat showing these signs is in distress, and comfort-focused care becomes the priority. Keeping the cat warm (a low-temperature heating pad under a soft blanket), minimizing stimulation, and staying nearby without forcing interaction are appropriate responses. Calling a veterinarian at this point to discuss whether at-home euthanasia is appropriate is a kindness, not a premature decision.

Behavior Changes in Senior Cats That Signal Medical Problems

Every significant behavior change in a senior cat should be treated as a medical symptom until a veterinarian rules out a physical cause, because sudden aggression, withdrawal, vocalization, or litter box changes almost always trace to a diagnosable condition.

Hearing loss in senior cats is common and underrecognized. A cat that no longer comes to the sound of a food bowl being prepared, does not respond to being called by name, or startles violently at touch (because it did not hear the approach) may be significantly hearing-impaired rather than disobedient or aggressive.

What Your Senior Cat’s Bloodwork Numbers Actually Mean

The eight values that matter most in a senior cat blood panel each signal a specific organ system, and tracking the trend across 2 to 3 panels over 12 to 18 months is more useful than reacting to any single result.

Keeping printed copies of bloodwork from every visit and noting trends across 2 to 3 panels over 12 to 18 months is more clinically valuable than reacting to any single result in isolation. Ask your veterinarian to walk through the trend line rather than just the current values.

Keeping Your Senior Cat Warm and Comfortable at Home

Senior cats lose body heat faster than younger cats and may need ambient home temperature maintained above 70 degrees Fahrenheit in cold months, plus orthopedic bedding, raised food bowls, and warmth modifications that reduce daily physical strain.

Practical warmth and comfort measures:

• Self-warming orthopedic beds (use thermal-reflective filling rather than electric heating to eliminate burn risk for cats who cannot easily move away from heat)
• Placing beds in sunny window spots during daylight hours
• Raising food and water bowls to counter height (4 to 6 inches) for cats with cervical arthritis who find floor-level bowls painful to reach
• Providing multiple bed options on different levels of the home so the cat always has a warm resting spot within easy reach
• Keeping the home temperature at a minimum of 70 degrees Fahrenheit during cold months for cats over age 15
• Using a programmable pet fountain (moving water is more appealing to most cats) placed near the cat’s primary sleeping area to encourage hydration

Cats with very little body fat or those in late-stage illness benefit from a light, breathable cat sweater during cold weather, as long as the cat tolerates wearing it without stress.

How Long Do Cats Live: Lifespan Expectations by Health Status

The average indoor domestic cat lives 12 to 18 years, with cats who reach age 15 frequently surviving into their late teens or early twenties when chronic conditions are actively managed. The oldest reliably documented cat, Creme Puff of Austin, Texas, lived to 38 years.

Lifespan expectations vary considerably by health status:

Indoor-only cats consistently outlive outdoor cats by a meaningful margin. Outdoor cats face vehicles, predators, disease exposure, and injury, contributing to an average lifespan of only 2 to 5 years in feral populations and significantly shorter lives even for owned outdoor cats compared to their indoor counterparts.

Senior Cat Constipation: A Frequently Overlooked Problem

Constipation affects cats over age 10 more frequently due to reduced colon motility (the slowing of muscular contractions that move waste through the gut), dehydration, and low activity levels, and if left untreated it can progress to megacolon (irreversible dilation and loss of colon function).

Signs a senior cat is constipated:

• No stool in the litter box for more than 48 hours
• Small, hard, dry pellet-like stools
• Repeated trips to the litter box with minimal or no result
• Straining or vocalizing in the box
• Lethargy and appetite loss (toxin buildup from retained waste causes nausea)
• Distended or hard abdomen

Treatment for mild constipation includes increasing wet food intake, adding a teaspoon of plain canned pumpkin (not pie filling) to meals for added fiber and moisture, and ensuring the water source is fresh and appealing. Veterinary options for recurring constipation include lactulose (a sweet oral liquid laxative that pulls water into the colon), miralax (polyethylene glycol, prescribed at 1/8 to 1/4 teaspoon mixed into wet food), and in severe cases, enemas or manual extraction under sedation.

Frequently Asked Questions

At what age is a cat considered senior?

Cats are considered senior at age 11, according to the American Association of Feline Practitioners. The geriatric stage begins at age 15. Many veterinarians recommend transitioning to twice-yearly wellness exams starting at age 11 to catch age-related conditions while they are still manageable.

How often should a senior cat see the vet?

Senior cats aged 11 to 14 should see a veterinarian at least twice per year. Geriatric cats aged 15 and older benefit from 2 to 4 visits per year depending on their health status. Annual visits are not sufficient at this stage because many common senior conditions develop and worsen quickly between once-a-year appointments.

What is the most common health problem in senior cats?

Chronic kidney disease (CKD) is the leading cause of death in cats over age 10, affecting an estimated 1 in 3 senior cats. Hyperthyroidism is the most commonly diagnosed hormonal disorder, affecting roughly 10% of cats over age 10. Both conditions are detectable through routine bloodwork before significant symptoms appear.

What should I feed my senior cat?

Senior cats benefit from high-protein, low-phosphorus wet food with at least 30% protein on a dry matter basis. Wet food is preferred because its 70 to 80% moisture content supports kidney health. Cats diagnosed with kidney disease should be on a veterinarian-prescribed renal diet, not just a commercial senior formula.

Can senior cats eat the same food as adult cats?

Adult maintenance formulas are generally not ideal for cats over age 11 because they are not optimized for the muscle loss, reduced kidney function, and changed caloric needs of aging cats. Senior-specific or prescription formulas better address the nutrient ratios aging cats require, though the specific food should always be chosen in consultation with a veterinarian.

What are signs that my senior cat is in pain?

Behavioral signs of pain in senior cats include reluctance to jump, reduced grooming of hard-to-reach areas, choosing lower resting spots, stiffness after sleep, and irritability when touched. Cats do not vocalize pain the way dogs do, so these behavioral changes are the primary signal. A vet visit is warranted whenever behavior changes without an obvious cause.

Why is my senior cat losing weight?

Weight loss in a senior cat is almost always a sign of an underlying medical condition rather than normal aging. The most common causes are hyperthyroidism, chronic kidney disease, diabetes, dental disease causing pain while eating, and cancer. A cat losing weight should be evaluated by a veterinarian within a week, with bloodwork and a urinalysis as the starting point.

Why is my senior cat drinking so much water?

Increased water intake in senior cats is most commonly caused by chronic kidney disease, hyperthyroidism, or diabetes mellitus, all of which are diagnosable through a blood and urine panel. Normal water intake is approximately 3.5 to 4.5 ounces per 5 pounds of body weight per day. A cat drinking noticeably above this threshold consistently warrants a vet visit within a few days.

My senior cat is sleeping all the time. Is that normal?

Cats aged 11 and older normally sleep 16 to 20 hours per day, so total sleep duration alone is not a reliable warning sign. The concern is a change from the cat’s personal baseline, particularly when increased sleep is combined with not eating, hiding, difficulty rising, or labored breathing. Those accompanying signs warrant a vet evaluation.

Why is my senior cat meowing or yowling at night?

Nighttime vocalization in senior cats is most commonly caused by cognitive dysfunction syndrome (a feline form of dementia), hyperthyroidism, high blood pressure causing visual disturbances, or pain from arthritis. All of these are treatable or manageable conditions, so persistent nighttime yowling in a senior cat should not be dismissed as quirky behavior. A vet visit with bloodwork and a blood pressure check typically identifies the cause.

Can a senior cat develop diabetes?

Yes. Diabetes mellitus affects an estimated 1 in 230 cats, with most diagnoses in cats over age 8. Classic signs include drinking and urinating more than usual, eating more but losing weight, and hind leg weakness. Feline diabetes can go into remission in roughly 25 to 50% of cases when caught early and managed with a low-carbohydrate, high-protein wet food diet alongside insulin therapy.

Do senior cats need supplements?

Most healthy senior cats do not need supplements if eating a nutritionally complete food. Cats with specific diagnoses benefit from targeted supplementation: SAMe or Denamarin (which contains SAMe plus milk thistle) for liver and cognitive support, omega-3 fatty acids from fish oil for joint inflammation and kidney health, and probiotics for senior cats with chronic gastrointestinal sensitivity. Always confirm with a veterinarian before adding supplements, since some interact with medications or are inappropriate for certain conditions.

What is hypertrophic cardiomyopathy in cats?

Hypertrophic cardiomyopathy (HCM) is a thickening of the heart muscle that reduces pumping efficiency, and it is the most common heart disease in cats. It frequently develops in cats over age 10 and is often found incidentally when a vet hears a murmur during an exam. Many cats live years without symptoms, but advanced HCM can cause sudden respiratory distress or hind leg paralysis from a blood clot, both of which are emergencies.

How do I know when it is time to euthanize my cat?

Quality of life scoring tools such as the HHHHHMM scale provide a structured framework for this decision. A score consistently below 35 out of 70 across multiple assessments generally indicates that a cat’s suffering outweighs its good experiences. Discussing end-of-life thresholds with your veterinarian before a crisis makes this decision less overwhelming when the time comes.

Is it safe to give my senior cat Tylenol or ibuprofen for pain?

No. Acetaminophen (Tylenol), ibuprofen, aspirin, and naproxen are all toxic to cats and can be fatal. A single regular-strength Tylenol tablet can cause fatal red blood cell damage in a cat. Only use pain medications prescribed specifically for your cat by a licensed veterinarian.

How much does senior cat care cost per year?

Basic senior cat care including twice-yearly exams and bloodwork costs approximately $450 to $1,000 per year. If a cat develops a chronic condition such as kidney disease, hyperthyroidism, or arthritis, annual costs typically range from $1,500 to $4,000 or more depending on treatment chosen. Pet insurance enrolled before age-related conditions develop can significantly offset these costs.

What is cognitive dysfunction syndrome in cats?

Cognitive dysfunction syndrome (CDS) is a form of dementia in cats, characterized by disorientation, altered sleep patterns, house soiling, and reduced social interaction. It affects an estimated 50% of cats aged 15 and older. There is no cure, but environmental enrichment and certain supplements or medications can slow progression and maintain quality of life.

How long do senior cats live after a kidney disease diagnosis?

Survival after a chronic kidney disease diagnosis varies considerably by stage at diagnosis. Cats diagnosed at Stage 1 or Stage 2 and managed with a renal diet and supportive care often live 3 to 5 years or more after diagnosis. Cats diagnosed at Stage 3 typically survive 1 to 3 years with active management. Stage 4 at time of diagnosis carries a median survival of weeks to a few months. Early detection through regular bloodwork is the most important factor in extending life.

Why has my senior cat stopped grooming?

Reduced self-grooming in senior cats is most often caused by arthritis (making it painful to reach certain body areas), obesity, dental pain, or illness-related lethargy. It is not a normal part of aging to stop grooming entirely. A cat with a greasy, matted, or odorous coat should be evaluated for the underlying physical cause, not simply groomed more frequently without addressing why the behavior stopped.

Is it okay for my senior cat to go outside?

Outdoor access carries meaningfully higher risk for senior cats compared to younger adults. Senior cats have slower reflexes, reduced vision and hearing, and are more vulnerable to predators, vehicles, and temperature extremes. Cats with cognitive dysfunction are particularly at risk of becoming disoriented and lost. If outdoor time is important to the cat’s quality of life, a fully enclosed catio (a screened outdoor enclosure that gives cats fresh air and visual stimulation without roaming risk) is the safest compromise.

Do senior cats still need vaccines?

Yes, senior cats still need core vaccines, but the schedule often changes. The FVRCP combination vaccine is typically given every 3 years rather than annually for indoor cats with a documented history. Rabies vaccination remains legally required in most US states at all ages. Non-core vaccines such as feline leukemia should be reassessed based on current lifestyle and exposure risk at each visit.

Can senior cats get diabetes?

Yes. Feline diabetes most commonly develops in cats over age 8, with incidence increasing significantly after age 10. Signs include increased thirst and urination, eating more but losing weight, and hind leg weakness. The good news specific to cats is that 25 to 50% of feline diabetics achieve remission, meaning insulin is no longer needed, when the disease is caught and treated aggressively early.

What are signs of cancer in a senior cat?

The most common warning signs of cancer in senior cats are unexplained weight loss, a palpable lump or swelling anywhere on the body, difficulty eating or drooling (which may indicate oral cancer), chronic vomiting or diarrhea that does not resolve, and labored breathing. None of these signs is diagnostic on its own, but any one of them in a cat over age 10 warrants a prompt veterinary evaluation rather than watchful waiting.

What supplements should I give my senior cat?

Most healthy senior cats eating a complete food do not need supplements. Cats with specific conditions benefit from targeted products: omega-3 fatty acids (fish oil at 50 to 100 mg EPA/DHA daily) for joint and kidney health, SAMe or Denamarin for liver and cognitive support, and veterinarian-prescribed B12 injections for cats with intestinal disease. Always confirm with your vet before starting any supplement since some interact with medications.

How do I get my senior cat to drink more water?

The most effective strategies for increasing water intake are switching to wet food (which is 70 to 80% moisture), placing multiple water stations throughout the home, using a running water fountain, and mixing warm water or low-sodium broth into food. For cats with diagnosed kidney disease, home subcutaneous fluid administration prescribed by a veterinarian delivers hydration that no food or drinking strategy can fully replicate.

What is the best food for a senior cat with kidney disease?

Cats diagnosed with chronic kidney disease (CKD) need a prescription renal diet (available only through veterinarians) that restricts phosphorus below the levels found in any over-the-counter senior food. Wet versions of renal diets are preferred over dry because hydration directly slows disease progression. Do not start a phosphorus-restricted prescription diet without a confirmed CKD diagnosis, since the nutrient limits are inappropriate for healthy cats.

Why is my senior cat so skinny even though it eats well?

A cat that eats normally but continues losing weight is almost always dealing with a condition that interferes with nutrient absorption or metabolism. The most common causes are hyperthyroidism (which burns calories faster than the cat can consume them), intestinal lymphoma, inflammatory bowel disease, and chronic kidney disease. A senior cat eating well but losing weight should be seen within a week, not monitored at home.

Is my senior cat in pain if it purrs?

Cats purr both when content and when in pain or distress, so purring alone is not reassuring evidence that a cat is comfortable. Research has documented that cats purr during veterinary examinations when they are clearly stressed or ill. Behavioral signs of pain (reluctance to jump, reduced grooming, posture changes, irritability) are more reliable indicators than vocalization patterns.

Should I adopt a senior cat?

Adopting a senior cat is a well-suited choice for owners who want a calm, settled companion without the high-energy demands of a kitten. The key preparation steps are requesting full medical records before adoption, scheduling an independent vet exam within 72 hours of bringing the cat home, and having $500 to $1,000 in accessible funds in case an existing condition is identified at that first exam. Senior cats are the least-adopted shelter population and typically bond deeply once settled in a home.

Why is my senior cat suddenly aggressive?

Sudden aggression in a previously calm senior cat is almost always caused by pain, and the most common sources are arthritis, dental disease, and abdominal discomfort. Hyperthyroidism and hypertension can also cause increased irritability and reactivity. A vet exam with a full physical and bloodwork is the appropriate first response, not behavioral correction.

My senior cat has started missing the litter box. What is causing it?

Litter box avoidance in senior cats has four primary causes: arthritis making the box difficult to enter, cognitive dysfunction causing the cat to forget the box location, urinary urgency from kidney disease or a urinary tract infection, and box aversion from soiling buildup. Rule out medical causes first before assuming behavioral issues. Switching to a low-sided box and adding an additional box on each floor resolves the problem in many arthritis cases.

How do I know if my senior cat has dementia?

Feline cognitive dysfunction syndrome is diagnosed based on the DISHA criteria: disorientation, changed interactions, disrupted sleep and wake cycles, house soiling, and altered activity. A cat that yowls at night for no apparent reason, seems confused in familiar rooms, sleeps heavily all day then paces at night, or appears not to recognize family members may have cognitive decline. A veterinarian can rule out other medical causes of these symptoms before confirming a cognitive dysfunction diagnosis.

What are the signs my senior cat is in kidney failure?

Advanced kidney failure produces symptoms including vomiting, significant weight loss, profound lethargy, drooling, mouth ulcers, a distinctive ammonia-like odor to the breath, and in late stages, seizures or loss of consciousness. A cat showing these symptoms is likely in Stage 3 or Stage 4 kidney disease and needs same-day veterinary evaluation. Earlier stage kidney disease (Stages 1 and 2) typically produces no visible symptoms, which is why routine bloodwork every 6 months is essential.

Do senior cats need special litter?

Senior cats do not require a specific type of litter, but texture and scent matter more as cats age. Low-dust, unscented, soft-particle clumping litter is the most widely tolerated by older cats. Heavily scented litters can deter aging cats with sensitive airways. If a senior cat begins avoiding a litter that previously worked, switching to an unscented fine-grain formula often resolves the avoidance.

Is it normal for my senior cat to vomit frequently?

Vomiting more than once or twice per month is not normal in senior cats regardless of age, even though many owners accept it as routine. Frequent vomiting can signal kidney disease, hyperthyroidism, gastrointestinal lymphoma, inflammatory bowel disease, or pancreatitis. Any senior cat vomiting more than weekly should have bloodwork, a urinalysis, and ideally an abdominal ultrasound to identify the underlying cause.

How do I give my senior cat subcutaneous fluids at home?

Subcutaneous fluids are administered using a fluid bag, giving set tubing, and a needle inserted into the scruff of the neck. Most owners learn the technique in one or two supervised sessions at their veterinary clinic. Typical doses range from 75 to 150 mL given every 1 to 3 days depending on the cat’s condition. The fluid forms a temporary lump under the skin that absorbs over 6 to 8 hours.

What does it mean if my senior cat has a heart murmur?

A heart murmur in a senior cat indicates turbulent blood flow and may or may not indicate significant heart disease. Grade 1 to 2 murmurs (on a scale of 1 to 6) in a cat without symptoms may be monitored without immediate treatment. Grade 3 and above, or any murmur accompanied by breathing changes or reduced activity, warrants a cardiac ultrasound to assess heart structure directly. Hypertrophic cardiomyopathy (HCM) is the most common underlying cause.

Should I get another cat to keep my senior cat company?

Introducing a new cat to a senior resident is generally not recommended unless the senior cat has consistently been social and shows genuine signs of loneliness. Most senior cats find a new companion more stressful than comforting, particularly those with pain, cognitive decline, or sensory loss. If the senior cat’s companion has died, consult a veterinarian or certified feline behaviorist before introducing a new animal.

What is the best way to keep a senior cat hydrated?

Switching from dry kibble to wet food is the single most effective way to increase a senior cat’s water intake, since wet food contains 70 to 80% moisture compared to roughly 10% in dry food. Adding a circulating pet water fountain near sleeping areas encourages drinking through movement and freshness. Normal daily water intake for cats is approximately 3.5 to 4.5 ounces per 5 pounds of body weight.

Why does my senior cat have bad breath?

Bad breath in senior cats most commonly signals dental disease, kidney disease (which produces an ammonia-like odor from waste buildup in the bloodstream), or diabetes (which can create a sweet or fruity smell). None of these should be dismissed as normal aging. Persistent bad breath warrants a dental examination and bloodwork at minimum.

How can I make my home safer for a senior cat?

Place ramps or low steps next to any furniture the cat still uses, add a litter box on each floor to eliminate stair climbing, and keep the home temperature above 70 degrees Fahrenheit in cold months. Remove loose rugs that slip under arthritic paws, and add night lights in hallways to help cats with vision decline or cognitive confusion navigate safely after dark. Raising food and water bowls to 4 to 6 inches off the floor reduces neck strain for cats with cervical arthritis.

Is it worth doing surgery on a senior cat?

Surgical risk in senior cats increases with age but is not prohibitive for cats otherwise in stable health. A pre-anesthetic blood panel, chest X-ray, and cardiac evaluation for cats over age 12 help assess individual risk. Many dental cleanings, mass removals, and even abdominal surgeries are performed successfully in cats aged 15 and older. The decision depends on the specific procedure, the cat’s underlying health status, and the quality-of-life benefit weighed against anesthetic risk.

What vaccines does a 15-year-old indoor cat need?

An indoor-only cat at age 15 typically needs only core vaccines: a rabies booster every 1 to 3 years as required by state law, and a FVRCP (distemper combination) booster every 3 years after the adult series is complete. The FeLV (feline leukemia) vaccine is not recommended for strictly indoor cats with no exposure risk. Vaccine decisions for very old or immunocompromised cats should be individualized with the veterinarian rather than following a default schedule.

What is the average lifespan of an indoor cat?

The average indoor domestic cat lives 12 to 18 years, with many reaching their early twenties when health conditions are caught early and managed well. Outdoor cats have significantly shorter average lifespans of 2 to 5 years due to exposure to vehicles, predators, and disease. Genetics, weight management, dental care, and regular veterinary monitoring are the factors most consistently associated with longer lifespan in indoor cats.

My senior cat is constipated. What should I do?

A senior cat that has produced no stool for more than 48 hours or is repeatedly straining in the litter box without result should be seen by a veterinarian the same day if straining, or within 24 hours if simply absent stool. Mild constipation can be addressed with increased wet food intake and a teaspoon of plain canned pumpkin added to meals. Do not give laxatives intended for humans without veterinary guidance, as dosing and ingredients differ significantly from feline-safe products.

How do I help a senior cat with cancer maintain quality of life?

Quality of life for a cat with cancer centers on effective pain control, appetite support, and minimizing treatment side effects. Palliative care, meaning comfort-focused care rather than curative treatment, is appropriate when curative options are exhausted or declined. This typically involves pain medication (buprenorphine or gabapentin), appetite stimulants such as mirtazapine (a medication that stimulates appetite by acting on brain chemistry) if the cat is not eating, anti-nausea medication, and environmental modifications to reduce physical effort. Quality of life scoring using the HHHHHMM scale every 1 to 2 weeks helps track whether good days still outweigh difficult ones.