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My dog has a bleeding, burst purple bubble on his sheath. What is it?

Updated On September 23rd, 2025

Pet's info: Dog | Boxer | Male | unneutered

Dog had a dark purple bubble/blister on his sheath. It became bigger and burst. Now it's leaking blood.

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1 Answer

Most Helpful Answer

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Answered By Mirissa Duncil, DVM

Veterinarian

Published on August 28th, 2017

Hi there and thanks for using Petco Pet Education Center, formerly Petcoach! I would recommend taking Bentley to have that looked at-while it is possible it is nothing more than you have described-there is also a possibility it could be a small tumor made of vascular tissue. Your doctor can do a needle aspirate or a biopsy while you are there. I'd have it looked at soon just to make sure it's nothing more serious-they can also help with the bleeding if there is no further concern

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