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What's this hard lump on my dog's inner thigh? Should I worry?

Updated On September 23rd, 2025

Pet's info: Dog | Boxer | Female | spayed | 40 lbs

I Need help for my dog she is a pure breed boxer and she has some type of ball shape thing under her back right leg on her inner thigh muscle it is hard as a rock and is about the size of a the clicker on a pen does any body know what it could be

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1 Answer

Most Helpful Answer

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Answered By Kevin Sanada, DVM

Veterinarian

Published on October 2nd, 2017

It could be a lymph node, some local inflammation under the skin, or a tumor. There are also certain types of cysts that can develop under the skin like this. It appears well rounded and not inflamed, which are signs that it may not be something serious. To get an accurate diagnoses, you would have to take her to the vet. However, you can also wait a while (a week or more) and just observe it for changes in size or color. If it grows rapidly, changes colors, or appears irregular, then it's best the take her into the vet. If it goes away, then I would not worry about it any longer. I hope that helps and all is well with Sadie.

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