Caring for a Senior Cat: What Changes After Ten
A cat becomes a senior around age ten, and most hide illness well. Learn the real changes after ten, the three most common senior diagnoses, and why twice-yearly vet visits, monthly weigh-ins, and small home tweaks add years of good-quality life.
Quick answer
A cat is considered senior from about ten years old, and mature (or "geriatric") from around fifteen. Most cats do not act sick as they age — they slow down quietly, sleep more, and hide discomfort well. The single biggest change you should make is switching to twice-yearly vet check-ups with bloodwork, so problems like kidney disease, thyroid changes, high blood pressure and arthritis are caught early rather than at crisis point.
A cat becomes a senior around age ten, and most hide illness well.
What actually changes after ten
Senior cats lose some kidney reserve, muscle mass and the ability to concentrate urine. Their sense of smell often fades, which quietly reduces appetite. Grooming gets patchy because stiff joints make twisting painful, so the coat looks greasy or matted along the back and around the tail. Many owners read these as "just old age," but each one is also an early sign of a treatable condition. Ageing is normal; declining is a signal.
Monthly weigh-ins catch the small losses that signal disease early.
Watch weight, water and the litter box
These three numbers tell you more than almost anything else. Weigh your cat monthly on a kitchen or baby scale — a loss of even 5 to 10 percent matters. Notice how often the water bowl empties; increased thirst is a classic early sign of kidney disease or diabetes. Scoop daily and pay attention: larger urine clumps, straining, or going outside the box all deserve a call to your vet.
Nutrition and hydration
Older cats need highly digestible protein to protect muscle, not less protein unless a vet prescribes it for a specific condition. Warming wet food slightly boosts aroma and appetite. Add water fountains and extra bowls to encourage drinking. If your cat has been diagnosed with kidney disease, a prescription renal diet is one of the few things proven to extend good-quality life — but never switch to it "just in case" without a diagnosis.
Comfort, mobility and the home
Arthritis is present in most cats over twelve, even when they never limp. Make the home kinder: a litter box with one low side for easy entry, steps or a stool up to the sofa, soft warm bedding away from draughts, and food and water on the floor rather than up high. Keep claws trimmed, as older cats often stop wearing them down and can catch them in carpet.
Steps, low-sided litter boxes and floor-level bowls ease stiff joints.
Mind and senses
Senior cats can develop a form of feline cognitive decline — night-time yowling, confusion, staring at walls, or clinginess. Keep routines predictable, leave a night light on, and mention any change to your vet, as some causes (like high blood pressure) are treatable. Failing eyesight and hearing also make cats startle more easily, so approach slowly and speak before you touch.
Quick FAQs
How often should a senior cat see the vet? Every six months for a physical exam, with baseline bloodwork, urine and blood pressure at least once a year.
Is weight loss in an old cat normal? No. Even with a good appetite, weight loss usually points to kidney disease, hyperthyroidism, diabetes or dental pain — all worth investigating.
Should I change my senior cat's food? Keep high-quality, digestible protein unless your vet diagnoses a condition that needs a prescription diet. Do not restrict protein pre-emptively.
My cat sleeps all day — should I worry? More sleep is normal, but hiding, not wanting to be touched, or stopping normal jumps and play are signs of pain, not just age.