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What is this painful blister-like lump on my dog's back? Pop it?

Updated On September 23rd, 2025

Pet's info: Dog | English Bulldog | Male | neutered | 80 lbs

My English bull dog has a thick blister type bubble on his back. It’s been there for 2 weeks. It’s about the size of a mini M&M. Should I pop it? When I press on it, it does seem to hurt my dog a little. Any advise?

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1 Answer

Most Helpful Answer

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Answered By Linda G, MS, DVM

Veterinarian

Published on February 13th, 2019

Hello. This looks like a small, benign button tumor. Usually, they do not grow significantly & sometimes they regress spontaneously. Do not pop this yourself because of the risk of infection. Any lump & bump should be thoroughly examined by your veterinarian because while this looks benign, it may not be. If your vet tells you he is concerned & it should be removed, this is an ideal time to do so while it is very small. Otherwise, leave it be until your vet has a chance to look at it. Thanks for using Petco Pet Education Center, formerly Petcoach.

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