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My dog has a red, ball-like growth on his penis. Should I be worried?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed Medium (23 - 60lb) | Male | neutered | 12 years and 9 months old

My dog has a skin flap on his penis- overnight it has gone from looking almost like a nipple to a small ball, very red, looking like it has burst out of its skin- it's not leaking or bleeding but looks like it should come off. I have booked vet for next week. Should I be worried/what could it be?

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1 Answer

Most Helpful Answer

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Answered By Stephanie Echols, DVM

Veterinarian

Published on September 14th, 2017

Thanks for using Petco Pet Education Center, formerly Petcoach! That area definitely looks like it needs to be removed. It likely has a poor blood supply and healing can be difficult. I recommend having it removed and have it sent to a pathologist to determine what it is. There is no way to know just by looking at it. I would see if you can move your vet appointment up to have the mass looked at sooner. When the skin is ulcerated like that, most pets won't leave it alone and it can get worse. I'm the meantime, you can wash it with a mild soap and water. Good luck and kisses to Jacks!

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