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Common health problems in cats: warning signs

A general guide to the most common health problems in cats and, above all, to the signs you should learn to spot. It doesn't replace your vet: it helps you get there in time.

7 min read Back to cats guide
Table of contents (8)
  1. 1. Cats hide pain
  2. 2. Urinary problems
  3. 3. Hairballs and digestion
  4. 4. Dental health
  5. 5. Being overweight
  6. 6. Kidneys: the key thing to watch in older cats
  7. 7. Check-ups and prevention
  8. 8. When it's an emergency

This guide is for general guidance: its aim isn't for you to diagnose your cat, but for you to learn to recognise the warning signs of the most common feline problems and get to the vet in time. In cats this is especially important, because they are masters at hiding that they're unwell.

Cats hide pain

By instinct, a sick cat hides its weakness. It doesn't complain like a dog; it withdraws, stays still, reduces its activity. By the time the symptoms are obvious, the illness has usually been progressing for a while.

That's why, rather than looking for dramatic symptoms, the useful thing is to know what's normal for your cat and notice the changes: how much it eats and drinks, how it uses the litter tray, where it sleeps, how it moves, its mood. A sustained change in any of these is a reason to seek advice.

Urinary problems

The urinary tract is one of a cat's weak points, especially in males, overweight cats or stressed ones. Watch for:

  • Straining in the litter tray, going in and out several times, crying while urinating.
  • Urinating outside the litter tray, in odd places, or drops of blood in the urine.
  • Persistent licking of the genital area.

A cat that strains and does NOT manage to urinate is an immediate life-threatening emergency (urinary blockage): don't wait even a few hours. For other urinary symptoms, book an appointment with the vet as soon as possible. Good hydration, a healthy weight and reducing stress all help to prevent it.

Hairballs and digestion

While grooming, a cat swallows hair. Normally it passes without any problem; sometimes it forms a ball that gets brought back up. An occasional one can be normal, but frequent retching, repeated vomiting, diarrhoea or constipation are not. Regular brushing—daily in long-haired cats—greatly reduces the problem. Persistent vomiting or digestive changes always warrant a vet visit: they can indicate anything from an intolerance to something more serious.

Dental health

Dental disease is very common and greatly underestimated. Tartar and gum inflammation cause pain and can affect other organs. Signs: marked bad breath, drooling, difficulty eating or chewing only on one side, dropping food, red gums. Check your cat's mouth now and then and mention it at check-ups; the vet will advise whether a dental cleaning is needed.

Being overweight

Being overweight is one of the most common problems in indoor cats and a risk factor for diabetes, joint and urinary problems and a shorter life. A cat at a healthy weight has a visible waist when seen from above and you can feel its ribs without pressing. If your cat is looking 'rounded', don't treat it as normal: adjust the portions with the vet, use puzzle feeders and increase play. Weight-loss diets in cats are always done gradually and under supervision.

Kidneys: the key thing to watch in older cats

Chronic kidney disease is one of the most common problems in cats from a certain age. It progresses slowly and silently, and is detected earlier with blood tests than with symptoms. The late signs include drinking and urinating far more than usual, losing weight, eating less and an unkempt coat. That's why, in the senior cat, check-ups every 6 months with a blood test are the best tool: the earlier it's detected, the better it can be managed.

Check-ups and prevention

Feline prevention rests on several pillars:

  • Veterinary check-up annually (adults) or every six months (seniors).
  • Vaccination and deworming according to the plan the vet sets, for indoor cats too.
  • Neutering, which prevents diseases and behavioural problems.
  • Always-fresh water and, if it eats dry food, encouraging water intake (fountains, wet food).
  • Weight management and an enriched environment that reduces stress.

When it's an emergency

Go to a vet immediately, without waiting, if your cat shows:

  • Straining to urinate without success.
  • Difficulty breathing, open-mouth breathing or panting.
  • Not eating or drinking anything for more than a day, or intense, sudden lethargy.
  • Repeated vomiting or diarrhoea, especially with blood.
  • Suspected poisoning, injury or a fall.
  • Seizures, disorientation or very pale or bluish gums.

In short: cats hide illness, so your best tool is knowing what's normal for them and noticing the changes. Watch the urinary tract, the weight, the mouth and, in the older cat, the kidneys. Keep up the check-ups—annual, and every six months for seniors—and, faced with emergency signs, don't wait. This guide is for guidance; the diagnosis is always the vet's.

Frequently asked questions

How often should I take my cat to the vet?
An annual check-up for healthy adult cats, and every 6 months from around 7-10 years of age (the senior stage). Cats hide illness extremely well, so regular check-ups are the way to catch problems in time before they show obvious symptoms. Add to that the vaccination and deworming visits.
How can I tell if my cat is in pain?
Cats rarely complain in obvious ways. The signs are usually subtle: they hide more, stop jumping onto their usual spots, neglect their grooming or over-groom one area, change posture, eat less, become grumpier or purr in an unusual way. Any sustained change in behaviour is worth a consultation.
Is it normal for my cat to vomit hairballs?
The odd hairball now and then (one a month or so) can be within the normal range, especially in long-haired cats. But frequent vomiting, retching without bringing anything up, loss of appetite or constipation are not normal and should be seen by the vet. Regular brushing and a suitable diet greatly reduce the problem.
My male cat can't manage to urinate, is it serious?
It's an absolute EMERGENCY. A cat, especially a male, that strains in the litter tray without passing urine, cries out in pain or licks the genital area a lot may have a urinary blockage. Without treatment within a few hours it is fatal. Don't wait: go immediately to a vet or an emergency clinic.
My cat is an indoor cat, does it need vaccinations and parasite treatment?
Yes. Even if it never goes out, we can bring in parasites or viruses on our clothes and shoes, and there can always be an escape or a trip to the vet. The specific plan (which vaccines and how often, which parasite treatment) is set by the vet according to the cat's lifestyle, but "indoor" doesn't mean "no prevention needed".

Who wrote this

Written by the Mizuu editorial team. This does not replace a consultation with your vet.

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