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My cat's lip is swollen and now her mouth feels hard. What's wrong?

Updated On September 23rd, 2025

Pet's info: Cat | Mixed Breed | Female | spayed | 13 years and 2 months old

Hi my cat keeps getting a swollen bottom lip but as of tonight her mouth at the side is very swollen, she has be de-fleaed with Bravecto and has been wormed, I have attached photo, it doesn’t seem to bother her, but it feels hard, can you help

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1 Answer

Most Helpful Answer

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Answered By Ricardo Fernandez, DVM

Veterinarian, Veterinary Oncology Resident

Published on July 31st, 2018

Thanks for using Petco Pet Education Center, formerly Petcoach! That is a great picture and I can see what you are referring to clearly. I am concerned that this could be a growth for example. Another possibility is that her canine tooth is rubbing on the gum tissue and causing inflammation and an examination would help determine if that seems likely. I highly recommend that you have Saffy evaluated by a veterinarian to have this sampled. This can be done via a fine needle aspirate or a biopsy to determine what this is exactly. Then therapy can be directed at that specifically. Hoping that this is benign. Good luck and have a great day!

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