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

Related Answers from Veterinarians

• Answered By David Elbeze, DVM, MRCVS

  Veterinarian

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

  

  16Pet Parents found this answer helpful

• Answered By Angel Alvarado, LVT

  Licensed Veterinary Technician

  Published on January 8th, 2017

  If it is at the base of the penis, it is likely Thor's bulbus glandis (aka the knot). It is normal and used to create the tie during mating. If the penis does not retract into the sheath after the swelling subsides or if it stays erect, then Thor needs to be seen by a vet as this is an emergency.

  

  4Pet Parents found this answer helpful

• Answered By Ricardo Fernandez, DVM

  Veterinarian, Veterinary Oncology Resident

  Published on September 21st, 2017

  Thanks for using Petco Pet Education Center, formerly Petcoach! If what you describe is inside of the skin, a few inches caudal to the tip of the prepuce, you may be describing the bulbus glandis which is a normal anatomical structure which kinda looks like a lump but it is normal. Good luck!

  

  1Pet Parents found this answer helpful

• Answered By Dr. Melanie, BVSc MS

  Veterinarian

  Published on February 4th, 2017

  If these lumps on Woofy's penis are in the middle of his penis, then likely what you are seeing are his bulbourethral glands. These are a normal part of a dog's anatomy, and swell when the dog is aroused or excited. This is not something you need to take him to an ER vet for :-)
  
  This limping may be caused by his arousal, but keep an eye on it for now. If the limping continues over the weekend, then I would have him seen by a vet, as it may have been caused by an injury which the vet can diagnose and treat.

  

  1Pet Parents found this answer helpful