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Why is my cat's upper lip swollen with no injury? Can I treat it?

Updated On September 23rd, 2025

Pet's info: Cat | Domestic Longhair | Female | 7 months and 6 days old | 5 lbs

My cat's upper lip is swollen, there's no wounds or scanning on it and nothing wrong inside of her mouth. It just randomly got swollen. I don't know what's wrong and I can't afford a trip to the vet at the moment.

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1 Answer

Most Helpful Answer

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Answered By Dr. Leigh, DVM

Veterinarian

Published on September 20th, 2017

She could have an eosinophilic granuloma which is common in cats and can be caused by an allergic response. The lesion may become ulcerated and is typically treated with a corticosteroid. If she has any fleas then she should be treated for fleas. You could also put her on a hypoallergenic diet and see if that helps. Try to find a low cost clinic or a vet that would take a payment plan so you can get her treated. If she just needs a corticosteroid then it shouldn't be very expensive. Hope she gets better soon!

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