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Why does my dog have a black-dotted bump on her leg and act odd?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed Medium (23 - 60lb) | Female | spayed | 7 years old | 32 lbs

Just noticed my dog has a small bump towards the back end/ back leg area. She is acting odd and is favoring that back leg. Her tail is between her legs and lacks spunkiness. There is a small tiny black dot on the bump as well. I slightly squeezed it and shows a tad of black coming out of the hole.

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1 Answer

Most Helpful Answer

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Answered By Dr. Massimo Orioles, DVM, Cert AVP, MRCVS

Veterinarian

Published on July 10th, 2019

This is very likely to be a sebaceous cyst but this lump/growth should be ideally examined by your veterinarian to have a definitive diagnosis. Your vet will examine it and possibly perform with an FNA (fine needle aspiration) or a biopsy. Differentials would include skin cyst, infections or benign or malignant type of tumors. Hope this answer was helpful, but please do not hesitate to contact us again on the forum or by requesting a consultation if you have any more questions or to discuss it any further. If this answer was helpful please let us know, this will be used to improve our service!

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