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Why does my dog have painful dark spots near his stomach and penis?

Updated on September 23rd, 2025

Pet's info: Dog | Shih Tzu | Male | neutered | 1 year and 5 months old | 11 lbs

My dog has developed small dark brown spots near his penis and a small hole on his stomach, they dont move and it hurts him for them to be touched. He keeps chewing down there as well.

1 Answer

Most Helpful Answer

Dr. Strydom, DVM

Answered By Dr. Strydom, DVM

Veterinarian

Published on July 27th, 2019

Those black spots look like comedones (aka: blackheads). I suggest you use this shampoo that contains benzoyl peroxide. Lather the affected areas (no need to do the whole dog), let it sit for 10-15 minutes and then rinse throughly. Do this every 2-3 days until they are gone. Then use this shampoo 1-2 times every month for maintenance.

( allivet.com/p-7130-oxiderm-shampoo-ps.aspx )

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