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My cat has fever, swollen belly, and red gums. Could it be FIP?

Updated On September 23rd, 2025

Pet's info: Cat | American Shorthair | Male | neutered | 2 lbs

I just asked a question about my cat Gibson. He is a nonstop purring machine too. Which I know is also a sign. I don’t have enough $$ to take him to the vet right now but I’m sincerely nervous about FIP due to him and my other two cats. I just had to treat the 3 of the last Friday for tapeworm too. Could that mimic symptoms of FIP?? Fever, small soft swollen belly, eating a lot, his gums are pink but a little red towards the tooth. Sorry I’m just panicking. Don’t know if it’s diet or serious

1 Answer

Most Helpful Answer

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Answered By Jeffrey Milner

Veterinarian

Published on April 18th, 2018

I understand you are concerned about FIP. The reality is, if you don't have money for a veterinary visit (and in many cases even if you did), FIP is typically fatal and untreatable. The best thing you can do is separate your sick cat from your healthy one and see how things transpire over the course of the next few days. Typically, cats with FIP, regardless of the form, will be inappetant and not wanting to eat anything at all. The worst form of it will cause massive fluid buiid up in the chest / abdomen and result in difficulty breathing. The other form typically produce clinical signs that are both ophthalmic and/or neurologic, plus several other non specific clinical signs (a couple of which include what you are descrbing). Overall, FIP would not be near the top of my list. I would definitely make sure all three cats have been tested for leukemia and AIDS however in order to rule both of these life-threatening conditions. While not as rapidly fatal as FIP, both conditions can carry poor long term prognosis. It sounds like the one cat with a fever and swollen belly might benefit from pain management and a recheck for the presence of worms. While dietary indiscretion could be an issue, it is not likely to cause a fever unless an infectious organism was present in the food. Hope this is more helpful than my previous response.

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