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What are the lumps on my dog's penis that get smaller after peeing?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed | Male | unneutered | 6 years and 7 months old

Hello , my male 7 year old dog has two lumps on his penis, one on each side. I took him for a walk and after he peed alittle they got smaller.

2 Answers

Most Helpful Answer

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Answered By Angel Alvarado, LVT

Licensed Veterinary Technician

Published on July 29th, 2016

If the lumps are at the base of his penis, it could be his "bulbus glandis". Also known as the "knot", these glands become pronounced during mating or excitement and are quite normal. If the lumps are not at the base, have Max examined by your vet to determine cause.

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16Pet Parents found this answer helpful

Other Answers

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    Answered By David Elbeze, DVM, MRCVS

    Veterinarian

    Published on

    These are probably his bulbourethral glands, which is absolutely normal. Here is a picture: http://www.askavetquestion.com/images/bulbourethralglands.jpg

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    16Pet Parents found this answer helpful

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