What's this lump on my neutered dog's abdomen near his neuter scar?

Related Answers from Veterinarians

• Answered By Ricardo Fernandez, DVM

  Veterinarian, Veterinary Oncology Resident

  Thanks for using Petco Pet Education Center, formerly Petcoach! This may be related to the neuter surgery though most likely represent a different issue such as him now having a tumor for example.
  
  This could be a benign or malignant growth. This is often differentiated by a test called a fine needle aspirate (FNA) which is a pain free, inexpensive and easy procedure which in most cases will help reach a diagnosis. Sometimes a biopsy is needed for a definitive diagnosis. I recommend that you have him evaluated by your veterinarian for further assessment and treatment. I am really hoping for something benign. Good luck and best wishes!

  

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• Answered By Dr. Strydom, DVM

  Veterinarian

  I think Steven needs to see your vet for an examination. That swelling is either a hernia, a tumor or a retained testicle.
  
  When dogs are neutered the vet is supposed to remove both testicles even if one is not descended. If it is not descended it is either in the inguinal region or still inside the abdomen. The vet will need to remove it from one of those locations. It is not recommended to leave it inside and only remove the descended testicle. So, if they never removed the retained testicle then that is likely what you are seeing. Retained testicles often turn cancerous due to the high temperatures of being inside the body instead of in the scrotum. If this is the case here, then that testicle needs to be removed as soon as possible.
  
  Hope this helps. Best wishes.
  
  

  

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• Answered By Cara, DVM, cVMA

  Veterinarian

  Published on July 24th, 2017

  I would take Riley to your vet sooner rather than later. A lump on the testicle is not normal, especially if it's grown in size in a short amount of time. Given that he is a young dog, it may not be cancerous, but there are other conditions that would necessitate him being neutered for the sake of his health.

  

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