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My cat has a pink bump on her lip. Is it serious? When to see a vet?

Updated On September 23rd, 2025

Pet's info: Cat | Domestic Shorthair | Female | spayed | 9 months and 14 days old | 7 lbs

My cat suddenly has a pink bump on her bottom lip. She’s acting completely normal and still eating but I just want to see if this is something serious and if I should take her to the vet.

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4 Answers

Most Helpful Answer

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Answered By Linda G, MS, DVM

Veterinarian

Published on June 15th, 2020

Hello. This is a mild allergic reaction to something. It may take a few days to a week to go down, but if it does not, or seems to be getting larger, please see your veterinarian. Thanks for contacting Petco Pet Education Center, formerly Petcoach.

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24Pet Parents found this answer helpful

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    Answered By Linda G, MS, DVM

    Veterinarian

    Published on September 25th, 2017

    Hello, & thank you or using Petco Pet Education Center, formerly Petcoach. Unfortunately your picture did not come through, but I would not be too concerned if the bump just showed up. It may be a reaction to a bite if your cat hunts, or it might be an allergic reaction to something. In a young cat, it is very unlikely to be very serious or contagious. If your cat is eating well & does not seem too bothered by it, then give it a couple of days to see if it goes down. Of course, if you are at all concerned, see your vet at your earliest convenience. Take care.

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    Answered By Lindsey Edwards MVB, BSc, IVCA

    Veterinarian

    Published on October 25th, 2017

    I would continue to monitor closely over the next 3-4weeks (take weekly pictures to compare); it looks quite benign and is unlikely to be anything sinister in such a young kitten but any redness, increase in size or discomfort should be checked by your vet as soon as possible

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    Answered By Laura Johnson VMD

    Veterinarian

    Published on February 2nd, 2018

    Hi, thanks for using Petco Pet Education Center, formerly Petcoach! I think I see what you are referring to, it is very small like 2mm pink skin growth on the right side by his whiskers? It's hard to say it likely is a skin tag or a sebaceous adenoma. I always recommend any new growth be evaluated by your Vet. You can also monitor it for growth. If it grows then you can discuss removing it. I hope this helps and I wish Oscar the very best!

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