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My kitten has a bloated stomach, no other symptoms. Is it FIP?

Updated On September 23rd, 2025

Pet's info: Cat | Mixed Breed | Female | unspayed | 2 months old

I have a new 9 week old kitten. We have had her for twelve weeks and her stomach seems to be bloated. She has literally no other symptoms at all. Her stool is slight soft but by no means diarea. We are worried it could be FIP. Is there anything else it could be? We took her to vet today and had a worn treatment and test that came back negative

4 Answers

Most Helpful Answer

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Answered By Dr. Massimo Orioles, DVM, Cert AVP, MRCVS

Veterinarian

Published on February 16th, 2019

More clinical signs and details are needed to determine the underlying cause, including details of the tests your vet have performed. When there is a suspcion of FIP, the underlying cause of the bloat (fluid, organ enlargement and so on) should be determine first, then if there is fluid inside her abdomen this should be ideally sampled and tested. Gastrointestinal worms should be rule out as they are commonly a possible cause of bloat in young kittens. Hope this answer was helpful, but please do not hesitate to contact us again on the forum or by requesting a consultation if you have any more questions or to discuss it any further. If this answer was helpful please let us know, this will be used to improve our service!

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    Answered By Angela Hinton, DVM

    Veterinarian

    Published on May 26th, 2018

    Hello there! I am sorry your little kitten isn't feeling well. Based on what you are describing my top concern would be FIP (feline infectious peritonitis). This is a viral infection that is pretty common in kittens and especially kittens that are in a shelter environment. Has your vet checked to see if there is free fluid in her abdomen? Her bloating could be due to extra fluid. If there is fluid, that raises my suspicion even more for FIP. You could also get a sample of this fluid to be analyzed as well. There is a blood test to check for corona virus which is what causes FIP, but it isn't specific for the particular mutation that causes FIP. Meaning they can be positive but not actually have FIP. If she were to be negative for corona virus then it is pretty unlikely this is FIP and you would have to do other testing such as abdominal ultrasounds. But if it's positive it's another thing that seems to point in the same direction. Unfortunately, if it is FIP that is poor prognosis. Most kittens do not do well. The bloating in her belly is uncomfortable and can make it harder to eat. And having a fever makes them feel badly too. I am worried that this little girl might not have a good outcome. But you could at least check for the fluid and consider the corona virus test to get some more information. I hope this information was helpful for you and I wish you and your bottle baby all the best! Dr. Angela Hinton

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    Answered By Cara, DVM, cVMA

    Veterinarian

    Published on June 22nd, 2017

    I assume you mean FIP or feline infectious peritonitis. It can cause abdominal swelling due to fluid buildup in the abdomen and can also cause vomiting and diarrhea. FIP is a very serious fatal disease, however parasites that are easily treated can also cause these signs. I would take Sassy to a veterinarian so they can evaluate her and check her stool for parasites. Hopefully it's something easily fixed!

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    Answered By Jeffrey Milner

    Veterinarian

    Published on April 18th, 2018

    FIP is an infectious disease, so if one of the cats has it there is a reasonable chance that all of your cats could have, or be in the process of developing, the condition. While some symptoms you are describing can occur with FIP, so can a long list of others. If he is painful in his belly to the point that he is resistant to you even touching it, he needs a physical exam, x-rays, and some diagnostic blood work. Its possible that his upper respiratory infection never truly got resolved, and has spread systemically affecting multiple organ systems. There is no definitive diagnostic tool for FIP either. There are only certain factors that will lead your veterinarian in that direction, particularly determine whether or not it is the form that has an extremely high mortality rate. Let me know if I can help you further.

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