Cat Health Checklist: 15 Signs of a Healthy Cat
Cats are masters at hiding illnessâa survival instinct from their wild ancestors. By the time a cat shows obvious signs of sickness, they may have been unwell for days or weeks. This checklist helps you monitor your cat's health and catch problems early.
1. Bright, Clear Eyes
Healthy cat eyes are bright, clear, and free of discharge. The whites should be white (not yellow or red), and pupils should be equal in size. A small amount of clear discharge in the corners is normal, but green, yellow, or thick discharge signals infection.
2. Clean Ears
The inside of your cat's ears should be pale pink and clean. A small amount of light brown wax is normal. Watch for: dark, crusty discharge (could indicate ear mites), redness, strong odor, or frequent head-shaking and scratching.
3. Shiny, Clean Coat
A healthy cat's coat should be shiny, smooth, and free of dandruff, bald patches, or matting. Cats are fastidious groomersâa dull, greasy, or matted coat often means your cat isn't feeling well enough to groom, or has an underlying skin condition, thyroid issue, or arthritis making grooming painful.
4. Healthy Weight
Obesity is the most common nutritional disease in indoor cats, affecting over 50% of pet cats. You should be able to feel your cat's ribs easily without pressing through a thick fat layer, and see a visible waist from above. A pendulous "primordial pouch" (the flap of skin on the belly) is normal in many cats and isn't necessarily a sign of obesity.
5. Normal Eating and Drinking Habits
Sudden changes in appetiteâeating much more or much lessâare red flags. Increased thirst can indicate kidney disease, diabetes, or hyperthyroidism, all common in older cats. Track how much your cat eats and drinks daily.
6. Normal Litter Box Habits
This is one of the most important health indicators for cats. Know your cat's normal patterns:
- Urination: Most cats urinate 2â4 times per day. Watch for straining, frequent trips with little output, blood in urine, or crying in the litter boxâthese can indicate a urinary tract infection or, in male cats, a life-threatening blockage.
- Defecation: Most cats defecate once daily. Diarrhea lasting more than 24 hours, constipation (no stool for 2+ days), or blood in the stool all warrant a vet visit.
- Location: If a normally litter-trained cat starts urinating outside the box, it's often a medical issue (UTI, crystals, kidney disease) before it's a behavioral one.
7. Good Dental Health
Lift your cat's lip and look at the teeth and gums. Gums should be pink (or pigmented in dark-coated cats), not red or white. Teeth should be white-ish, not covered in brown tartar. Bad breath isn't normalâit often signals dental disease, which affects over 70% of cats by age 3.
8. Normal Breathing
A resting cat breathes 20â30 times per minute. Breathing should be quiet and effortless. Watch for open-mouth breathing (an emergency in cats), rapid breathing, wheezing, or labored effortâall require immediate veterinary attention.
9. Active and Playful
While cats sleep 12â16 hours per day (more for kittens and seniors), a healthy cat has periods of activity, playfulness, and alertness. Lethargy, hiding more than usual, or loss of interest in favorite activities are early signs of illness.
10. Normal Vocalization
Know your cat's normal voice. Excessive meowing (especially at night in older cats) can indicate hyperthyroidism or cognitive decline. A change in the sound of the meow or purr can indicate respiratory infection or laryngeal issues.
11. Grooming Behavior
Healthy cats groom themselves regularly. Overgrooming (licking to the point of hair loss) can indicate allergies, stress, or pain. Undergrooming (greasy, matted coat) often signals arthritis in older catsâthey can't twist to reach their back and hindquarters.
12. Temperature Regulation
A cat's normal body temperature is 100.5â102.5°F. Warm ears and paws are normal, but if your cat feels hot to the touch, is shivering, or seeks extreme heat/cold, check their temperature or see a vet.
13. Hydration
Gently pinch the skin between your cat's shoulder blades and release. It should snap back immediately. If it stays tented, your cat is dehydrated. Another check: press on the gumsâthey should turn white then return to pink within 1â2 seconds.
14. Mobility and Movement
Watch how your cat moves. Stiffness, reluctance to jump, or limping can indicate arthritis (common in cats over 10), injury, or neurological issues. Cats hide pain exceptionally well, so subtle changes matter.
15. Mental Sharpness
In older cats, watch for signs of cognitive dysfunction syndrome (CDS)âthe feline equivalent of dementia: disorientation, getting "stuck" in corners, staring at walls, forgetting trained behaviors, or changes in sleep-wake cycles.
When to See a Vet Immediately
Some symptoms are emergencies. Seek immediate veterinary care if your cat:
- Has not eaten for 24 hours (cats can develop fatal fatty liver disease quickly)
- Is straining in the litter box without producing urine (especially malesâfatal within hours)
- Is breathing through the mouth or panting
- Has sudden paralysis or weakness in the hind legs
- Is vomiting repeatedly or vomiting blood
- Has pale or white gums (sign of shock or anemia)
- Has ingested something toxic (lilies, antifreeze, human medication)
Annual Vet Checkups
Even healthy-looking cats should see the vet annually (twice yearly for seniors over 10). Cats over 7 should have bloodwork to check kidney function, thyroid levels, and blood glucoseâearly detection of chronic diseases dramatically extends lifespan and quality of life.