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Puppy has a bump on testicle after vaccine, vet closed. What is it?

Updated on September 23rd, 2025

Pet's info: Dog | Mixed Breed | Male | unneutered | 2 months and 15 days old | 12 lbs

I just took my 10 week old pitbull to the vet for his first shot, no one including me noticed this, but a day to 2 days later, I noticed this bump on his testicle. Its a Sunday and vet isn't open. Happen to know what it is?

1 Answer

Most Helpful Answer

Answered By Destini R. Holloway, DVM

Veterinarian

Published on September 9th, 2018

Ouchie. Poor guy. This appears to be a solitary pustule or even an abscess on his skin, which is often caused by a foreign body that was introduced underneath the skin. This can be viral related so it’s best to take him back to your vet on tomorrow to have this area clean and drained. He will also likely be placed on antibiotics to see if this resolves. If there is no resolve with antibiotics then a biopsy likely will be recommended to determine the underlying cause and course of treatment; however this will likely resolve with antibiotics. Waiting until tomorrow or Tuesday to have this looked at is perfectly acceptable, as long as he is still eating, drinking and has normal energy level.

I hope that Rowdy’s skin lesions resolves soon! Best wishes and take care!

1Pet Parents found this answer helpful

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