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What are the lumps at the base of my dog's penis? Are they normal?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed Small (up to 22lb) | Male | neutered | 1 year and 2 months old | 11 lbs

Hello, at the base of my dogs penis, he's a Chihuahua mix about 10 pounds, there appear to be two lumps on either side of the penis. Is this a problem?

1 Answer

Most Helpful Answer

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Answered By Jennifer Summerfield, DVM CPDT-KA

Veterinarian, Certified Dog Trainer

Published on July 22nd, 2017

From your description, it sounds like you are seeing the bulbourethral glands - these are two glands that look and feel like round, firm lumps on either side of the base of the penis. They tend to be especially noticeable when the dog is excited, and/or when the penis is erect. These are a normal part of his anatomy, and nothing to worry about :) If you want to make sure that this what you are seeing, you could always ask your vet to check the next time Olaf goes in for a visit.

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