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My dog has a lump near his bottom. Is it a cyst, tumor, or hemorrhoid?

Updated On September 23rd, 2025

Pet's info: Dog | Labrador Retriever | Male | 4 years old | 96 lbs

I just took my dog dog to the vet for this discovery. Not sure if it’s a perianal cyst, tumor or what? At first I thought a hemorrhoid. Supposed to get excised next week. Any opinions as to what it is and treatment. Any help is welcome. Thank you!

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2 Answers

Most Helpful Answer

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Answered By Dr. Melanie, BVSc MS

Veterinarian

Published on February 21st, 2018

Unfortunately without seeing Remington in person, I can't say for certain what is causing this lump. It could be a cyst or a tumor, and you did absolutely the right thing by taking him into the vet. I think surgical excision is likely the best option in this case, the vet can submit to the laboratory to have it diagnosed. Once it's diagnosed, the vet can discuss treatment plans based on this diagnosis. Good luck!

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    Answered By Dr. Davis

    Veterinarian

    Published on April 3rd, 2018

    Depending on how it feels it could be a fluid filled cyst or if it’s solid then it’s more likely a mass. This is large and could get injured causing bleeding so I recommend a veterinary exam to see what it is and get treatment. Cysts can be drained easily, although they often will fill back up. To me this looks benign so removal may take care of this. Thanks for using Petco Pet Education Center, formerly Petcoach to help you care for Mowbin.

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