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My Boxer has a red bump on her inner front leg. What could it be?

Updated on September 23rd, 2025

Pet's info: Dog | Boxer | Female | unspayed | 2 years and 3 months old | 50 lbs

My boxer has a red bump on her inner front leg that kind of resembles a nipple. What could it be?

2 Answers

Most Helpful Answer

Laura Johnson VMD

Answered By Laura Johnson VMD

Veterinarian

Published on September 14th, 2017

Hi, thanks for using Petco Pet Education Center, formerly Petcoach!

A lot if skin bumps can look the same. But for a young dog and the location of it being on a leg it is likely a benign growth called a histiocytoma. They usually spontaneously regress in a few months. The other possibility is a Mast cell tumor, which can be common in Boxers. If the bump grows larger or doesn't go away in 2-3 months I would have your Vet examine it and consider aspirating it to see what it could be. It is never wrong to get it looked at sooner either!

I hope this helps!
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Related Answers from Veterinarians

  • Answered By Dr Stafford, BVetMed, MRCVS

    Veterinarian

    Published on October 23rd, 2017

    Unfortunately boxers are very prone to skin tumours, and this looks like one on Mia's leg. The good news is that many are benign, and even the cancerous ones stand a good chance with early surgical removal. It is impossible to tell just by looking exactly what a lump is, so I would advise you to take her to your vet. They can have a good look at it and decide a course of action with you, be that monitoring it, testing it or removing it. Try not to worry too much as these things are normally fine, it is best to be cautious with boxers though.

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    2Pet Parents found this answer helpful

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