Cats age gradually, and the changes can be so slow that it is easy to miss the early signs. That is often when health problems quietly take hold.

If your cat is 10 years or older, this guide covers the most common health issues in older cats, the signs to watch for, and what you can do about them before things get serious.

Quick Start: When to Worry About an Older Cat

Watch for weight loss, changes in thirst, litter box changes, bad breath, stiffness, confusion, or lower energy. Any change that lasts more than a day or two deserves a vet visit.

Go to the vet right away if your cat is straining to urinate or cannot pee, has trouble breathing, stops eating completely, or collapses. These are emergencies.

1. Arthritis and Joint Pain

Signs: Limping, stiffness, trouble jumping, less activity, and sensitivity when touched around the joints.

Care tips:

Soft bedding: Give your cat warm, comfortable places to rest.

Ramps or pet stairs: Help your cat reach favorite spots without jumping.

Vet support: Your vet may suggest pain relief or joint supplements. Never give your cat human pain medicine, as many are toxic to cats.

2. Dental Disease

Signs: Bad breath, drooling, trouble eating, pawing at the mouth, or a smaller appetite.

Care tips:

• Dental exams: Ask your vet to check your cat's teeth at every visit.
• Brushing: Brushing with a cat-safe toothpaste can help reduce plaque.
• Dental treats: Some treats and toys are made to help keep teeth cleaner.

3. Kidney Disease

Signs: Drinking more, urinating more, weight loss, a dull coat, and bad breath.

Care tips:

• Kidney diet: Your vet may prescribe a renal diet with controlled phosphorus and protein to support the kidneys.
• Hydration: Fresh water, wet food, and a water fountain can encourage your cat to drink more.
• Regular tests: Blood and urine tests help catch kidney disease early, when it is easier to manage.

4. Hyperthyroidism

Signs: Weight loss despite a bigger appetite, restlessness, more meowing, and an unkempt coat.

Care tips:

Medication: Anti-thyroid medicine, as a pill or a gel rubbed on the ear, can control hormone levels.

Prescription diet: A special low-iodine diet prescribed by your vet can help. It only works if your cat eats nothing else.

Other treatments: Radioactive iodine therapy or surgery may be options in some cases.

5. Diabetes

Signs: Drinking more, urinating more, weight loss, a bigger appetite, and low energy.

Care tips:

• Diet: A low-carbohydrate diet recommended by your vet helps manage blood sugar.
• Insulin: Many diabetic cats need insulin injections. Your vet will show you how to give them safely.
• Monitoring: Regular glucose checks help your vet adjust the treatment.

6. Vision and Hearing Loss

Signs: Bumping into objects, not responding when called, trouble finding food or the litter box, and changes in pupil size.

Care tips:

• Keep things the same: Avoid moving furniture so your cat can find its way.
• Use cues: Night lights help cats with poor vision. Hand signals or floor vibrations help cats with hearing loss.
• Be patient: Approach slowly and avoid startling your cat.

7. Cognitive Dysfunction Syndrome

Signs: Confusion, getting lost at home, meowing at night, changes in sleep, and less interest in people.

Care tips:

• Keep the mind busy: Puzzle feeders and gentle play help stimulate the brain.
• Keep a routine: Regular feeding and play times reduce anxiety.
• Talk to your vet: Some diets, supplements, and medicines can support brain health in older cats.

8. Weight Changes

Signs: Visible weight gain, trouble moving, and low energy. Older cats can also lose weight without an obvious reason, which is often a sign of illness.

Care tips:

• Portion control: Measure meals and feed a food made for your cat's age.
• Weigh regularly: Weigh your cat once a month and tell your vet about any big change.
• Gentle exercise: Short play sessions keep your cat active without overdoing it.

FAQs: Senior Cat Health

At what age is a cat considered senior?

Most cats are considered seniors from around 10 to 11 years old, but health changes can start earlier.

How often should older cats see a vet?

Most vets recommend a checkup every 6 months for senior cats, to catch kidney, thyroid, and dental problems early.

What are the biggest warning signs in older cats?

Sudden weight loss, appetite changes, drinking or urinating more, hiding, confusion, repeated vomiting, and breathing changes are all reasons to call your vet quickly.

Senior cats don't ask for much, but they do need you to pay attention. The earlier you notice changes in weight, thirst, movement, or behavior, the more your vet can do to help.

Regular checkups after age 10 are one of the best things you can do for an older cat's quality of life.

This article is for general information and does not replace advice from your veterinarian.

Sources

• American Association of Feline Practitioners (AAFP)
• Cornell Feline Health Center
• International Cat Care