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How to Tell if a Cat Has a Fever? If you suspect your cat has a fever, the most accurate way to tell is by taking their temperature.
A cat’s normal temperature ranges from 100.5 to 102.5°F (38.1 to 39.2°C).
Anything above this range is considered a fever.
While you can observe behavioral changes, like lethargy and lack of appetite, the best way to confirm is by using a thermometer.
Signs Your Cat May Have a Fever
While you can only confirm a fever with a thermometer, there are some common signs that may indicate your cat is feeling unwell. Keep an eye out for the following symptoms:
- Lethargy and Weakness: Cats with a fever often become less active and sleep more than usual. If your typically energetic cat suddenly seems tired and weak, it could be a sign of illness.
- Loss of Appetite: A sudden decrease in appetite is another warning sign. If your cat is refusing food or water, it may indicate that they are not feeling well, which can be a symptom of a fever.
- Shivering or Trembling: Just like humans, cats may shiver or tremble when they have a fever. If you notice these behaviors, it’s time to check their temperature.
- Rapid Breathing or Panting: Cats may breathe faster or start panting if they have a fever. This occurs because their body is trying to regulate its temperature.
- Warm Ears or Paws: Although it’s not a definitive sign, if your cat’s ears or paws feel unusually warm to the touch, it could be a sign of a fever.
For more on maintaining your cat’s overall health such as coughing, check out our guide to common feline health issues.
How to Measure Your Cat’s Temperature
To check your cat’s temperature, use a digital rectal thermometer designed for pets, which can be found at pet stores or veterinary offices.
Apply a small amount of lubricant, such as petroleum jelly, to the thermometer for comfort.
Gently insert it about one inch into your cat’s rectum, holding it in place until it beeps.
A temperature above 102.5°F (39.2°C) indicates a fever.
If it’s mild, monitor your cat closely, but if the fever is high or accompanied by other symptoms, contact a vet immediately.
For detailed steps on taking a cat’s temperature, visit Wikipedia’s guide on cat health.
