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My dog has a lump on its left side. Is it a tumor or something else?

Updated On September 23rd, 2025

Pet's info: Dog | Labrador Retriever | Female | unspayed | 20 lbs

Lump on dog’s left side?

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1 Answer

Most Helpful Answer

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Answered By Dr. Strydom, DVM

Veterinarian

Published on September 17th, 2023

Hello, thank you for using Petco Pet Education Center, formerly Petcoach. The photo is taken very far away which makes it difficult to tell what is going on here even with zooming in a bit. This could be a tumor but it could also be a cyst or an abscess. It is best to take Cornelia to your vet so they can do an in-person examination. They will be able to advise you better as to what it may be. Something like this is extremely difficult to "diagnose" via a photo. It really needs to be seen and felt in person. Hope this helps. Best wishes.

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