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My dog has a bump on his penis. What could this lump or growth be?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed | Male | neutered | 12 lbs

My dog has a bump on the outter skin around his penis. What could it be?

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1 Answer

Most Helpful Answer

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Answered By Rodrigo Roca, DVM

Veterinarian

Published on August 27th, 2017

Hello, sorry to hear about Chewy. Depending on how it feels that could be something benign such as a fluid filled cyst or an abscess (pocket of infection and pus), or it could be something more aggressive such as cancer. The only way to tell is by taking a sample of it and looking at the cells under the microscope. If it's a cyst or an abscess, your veterinarian will be able to tell most likely without needing to look at the cells. I would recommend having the lump evaluated by your veterinarian. In the interim you should monitor the lump daily to note any changes in size or appearance. Hope this helps and best of luck

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