Infections and abscesses
Infections and abscesses are a very common cause of high temperatures in cats.
Cat bites are the most common cause.
Unknown Pyrexia of unknown origin
‘Pyrexia of unknown origin’ is a condition which causes a high temperature with no obvious cause.
Pain and inflammation (swelling)
Any type of pain or inflammation such as arthritis or bladder inflammation can raise a cat’s temperature.
Some insecticides and slug pellets cause muscle tremors which can cause a cat to overheat.
Cats left in cars or stuck inside hot spaces in summer can get heat stroke.
Cats stress very easily and this can raise their body temperature.
Medicine reactions can cause a high temperature.
If your cat is overweight, it’s much harder for them to lose body heat.
Cancer can cause a high temperature in a cat, however, there are likely to also be many other symptoms.
Feline Leukaemia Virus (FeLV) is a common cancer in young cats that can be prevented by vaccination.