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My dog has a fluid lump on her belly. Blister or something serious?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed Medium (23 - 60lb) | Female | unspayed

Can you tell me what the fluid filled lump is on my dogs belly near her back leg , looks like a large blister

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1 Answer

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Answered By Jeffrey Milner

Veterinarian

Published on June 15th, 2017

Fluid filled structures on abnormal areas of the body are usually either cysts, abscesses, or tumors. The only way to know for sure is to have it examined by a veterinarian, and likely have it stuck with a needle to have the fluid examined.

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