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My neutered dog has a new lump on his testicles. What could it be?

Updated On September 23rd, 2025

Pet's info: Dog | Labrador Retriever | Male | neutered | 30 lbs

My 1 year old lab mix with pit. Grew this thing on his testicles I’m not sure what it is but it wasn’t there earlier I took a photo. He is also nudered not sure if it has something to do with that.

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2 Answers

Most Helpful Answer

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Answered By Sara Farmer, DVM

Veterinarian

Published on January 5th, 2020

I'm wondering if your dog was neutered recently - it almost looks like there could be a scrotal incision and discharge in the center of the photo. Either way, the raised area looks like it could be a growth, tumor or abscess/infection and if he was not neutered recently the discharge is concerning. I would definitely recommend having your vet take a look.

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    Answered By Makenzie Kurth, DVM

    Veterinarian

    Published on February 14th, 2018

    That does appear to be in the scrotum yes. If he was neutered in the last 1-2 weeks, it could be filled with either serum or blood. This is not terribly concerning and I see it happen as a minor complication from neutering. If he was neutered before you got him as a puppy, it could be that he had only one descended teste and the other one has descended more recently. It could be an infection, trauma, or some other thing. Regardless, I would take him to your vet at your earliest convenience. He/she can give it a good feel and figure out what’s going on. Best of luck to you and Marshall!

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