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Why is my dog's penis red and discharging? Should I see a vet?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed Small (up to 22lb) | Male | neutered | 1 year and 9 months old | 20 lbs

Should I be worried if my dogs pennies is a little red and has a little bit of discharge is what it looks like

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1 Answer

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Answered By Dr. Melanie, BVSc MS

Veterinarian

Published on February 10th, 2018

Yes, I would be concerned about Guapo in that this redness and discharge can indicate an infection. From the pictures, it look like the discharge could be pus. He could have an infection of the prepuce (the penile sheath), or he could have a UTI or bladder stones causing these symptoms. I would gently wipe the area with warm water on a soft cloth, and have him seen by a vet. The vet can examine him and diagnose what is causing this redness and discharge so he can be treated. Taking him into a vet today would be best if possible. When dogs have infections, they can lick the area because it's uncomfortable to them, but licking it will make it worse. I would put an Ecollar on him if you notice him licking his penis area. You can make one at home or you can buy one at a pet shop. Good luck, I hope this helps! http://dogsaholic.com/care/homemade-dog-cone.html

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