What to Do When Your Cat Has a Fever
📝 Summary
A cat's fever is rarely simple; it can signal parasites, stress, bacterial infection, panleukopenia, feline herpesvirus, or inflammation, and can damage organs if ignored. Signs include hot ears and tail, dry nose, sweaty paws, and a cat that seeks cool floors and dark corners while eating less and looking limp. Normal temperature is 38-39C (kittens ~39.3C); above 39.5C is fever, above 40C high. For mild fever, cool paws and belly with alcohol and offer water, but never give human fever medicine, which can be fatal - see a vet for high fevers.
1 Signs your cat has a fever
By body feel: a healthy cat’s nose is moist and cool, and its ears and paws are gently warm. When feverish, the ears and tail tip feel hot to the touch, the nose is dry, and the paw pads sweat often.
By behavior: cats normally love warm, soft spots, but a feverish cat does the opposite – it flops on cool floors and hides in dark, shady places. It also shows reduced appetite, refuses food, looks depressed, crouches with little movement, and may tremble all over.
2 Taking your cat’s temperature
If you see the signs above, confirm the temperature. A human thermometer works – mercury or digital. For the most accurate reading, take the rectal temperature: shake down the mercury thermometer, lubricate the tip, lift the tail, and insert the tip about 2 cm into the rectum at a slight angle against the wall; wait 2-3 minutes, then wipe and read. If the cat struggles, hold it firmly and tuck the thermometer between the hind leg and belly for 6-7 minutes.
With a digital thermometer it is simpler: lift the ear, place the tip just inside the ear canal, and read after roughly ten seconds. A normal cat base temperature is 38-39C (kittens around 39.3C). Above 39.5C counts as a fever, and above 40C is a high fever.
3 Emergency cooling and when to see a vet
For a mild fever, or at night when you cannot reach a clinic right away, wipe the cat’s paws and belly with alcohol to cool it down. A feverish cat loses water fast, so offer plenty to drink; if it will not drink, drip water into its mouth with a syringe. If the temperature will not come down, get to a clinic, because a long fever harms the body and invites complications. For a high fever, take the cat to a veterinary hospital for injections and fluids to bring it down.
Never give a cat human fever medicine on your own – human-only fever drugs can contain ingredients that are fatal to cats.
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