Like most wild animals, cats don't show that they are sick because of potential predators. Be aware of any unusual behaviour and don't hesitate to bring your cat to the veterinarian.

Unusual behaviour

A change in behaviour is the first sign that should catch your attention. For example, if your cat is always by your side and now is suddenly staying away from you, if your cat is usually a big meower and is now very quiet, if they usually play a lot and are now lethargic... it can be anything! Any unusual behaviour is a warning sign.

Eating and drinking

You need to always make sure your that your cat eats and drinks. If your cat is not drinking or not eating (even their favourite treats), or if they're eating too much, something might be wrong. If your cat hasn't drank in the last 10 hours, then they are already dehydrated and you must take them to the vet immediately. To ensure that your cat is or is not dehydrated, pinch their skin. If the skin immediately goes back to its normal place when you release it, they're not dehydrated. But if the piece of skin you pinched stays up, they're dehydrated.


If your cat doesn't go to their litter box, goes very often or doesn't have time to reach it and relieve itself outside of it - pay attention. If you notice an unusual smell or blood in the urine or stool or if your cat seems to be in pain when they pee, take them to the veterinarian.

Unusual temperature

A cat's normal body temperature is between 38 and 39°C. You can check it with a thermometer that you gently insert into their rectum. Use vaseline or oil to lubricate the tip of the thermometer. If your cat is above 40°C or below 37,5°, take them to the veterinarian.

What does your cat look like?

If you cat's fur looks funny (tangled hairs, dry or oily fur) it means that your cat is not cleaning themself anymore and might mean that they're sick. If you notice any other unusual changes, such as red or yellow eyes, running nose or pale mucous membrane, you need to take your cat to the vet as well. Also, if you notice that your pet has rapidly gained or lost weight, they're probably sick. If your cat vomits or has diarrhea, you need to watch them.


  • Write down any unusual sign you have noticed and tell your vet.
  • You know your cat more than anyone, so you should be able to notice if something is wrong.
  • Do not hesitate to go to the vet.

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