Petco Text Logo
Petco Pet Logo

What's this weird sore on my dog's penis? Vets can't fix it.

Updated On September 23rd, 2025

Pet's info: Dog | Shih Tzu | Male | unneutered | 1 year and 6 months old | 13.5 lbs

Hello, I have a 2 year old male shih-tzu, about a month ago i saw a weird thing on my dog’s penis, we brought him several times at the vet and they only gave him medicine that did not work . This morning, I saw once again something weird. I don’t know how to describe it but it seems bitten. We never matted him or anything else. I hope you will understand and give me answers. I am very worried that it is something bad.

This question includes photos that may contain sensitive content. Click to view.

View more to consider that the photos may include sensitive content.

1 Answer

Most Helpful Answer

Image profile

Answered By Makenzie Kurth, DVM

Veterinarian

Published on March 30th, 2018

Thanks for using Petco Pet Education Center, formerly Petcoach. I see what you are talking about and I would describe them as erosions or ulcers. Honestly I’ve not see this on the penis like this before but I would start with topical therapy. So gently rinse the whole penis with diluted iodine or chlorhexidine solutilon. Then pat dry, put on some sterile lubricant and replace the penis. I would do this once daily for a few days to see if that helps. Other thoughts are an antibiotic trial, and antifungal trial. a culture of the area, a biopsy (maybe, if deemed possible by your vet) or, if getting much worse or spreading, talk to your vet about the pros and cons of a course of steroids in case it is some unusual auto-immune disease. Best of luck to you and Lucky!

Vote icon

1Pet Parents found this answer helpful

image
Have A Vet Question?

Book an appointment with the pros – our expert vets are here to help.

Sponsored