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What is this growth on my dog's upper lip? Should I be concerned?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed | Female | spayed | 9 years and 10 months old | 4 lbs

I will take her in to get this looked at most likely Wednesday but in the meantime, should I be as worried as I am? It’s not causing her any problems & both sides of her upper lip looks like that. I don’t feel any hardness or anything. She’s in no pain, eating regularly, great bloodwork. Only has a bit of tartar on her teeth. But does this seem worrisome? (Google image provided for as a clearer example)

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1 Answer

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Answered By Linda G, MS, DVM

Veterinarian

Published on December 17th, 2018

Hello. I would not be too worried, I just would like to have this checked out as soon as possible. Oral lesions have a way of sneaking up on you, so I am glad you were so diligent in finding this. It is quite easy to determine if this is a bad situation by removing a small piece of tissue & having a pathologist examine the cells under a microscope. Some oral lesions can look quite benign but can turn out to be very worrisome, but lets not jump the gun. You are doing the right thing not waiting months to have it looked at. Fingers crossed that all will be fine. Thanks for using Petco Pet Education Center, formerly Petcoach.

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