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My dog has yellow-green discharge from his penis. Is it normal?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed Large (61lb +) | Male | neutered | 2 years and 9 months old | 65 lbs

Hello. I noted this yellow/green discharge coming from my dogs penis. Is this normal? There was a drop of it on the floor, so its not just on his...but coming off. I only saw the one drop today. Thank you

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4 Answers

Most Helpful Answer

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Answered By Jennifer Summerfield, DVM CPDT-KA

Veterinarian, Certified Dog Trainer

Published on November 14th, 2017

Yes, it's normal to see a small amount of yellow-green discharge at the tip of the penis in male dogs - this is called smegma, and is comprised of oils and secretions from inside the prepuce (the skin sheath that surrounds the penis). As long as Chester is acting normal, this shouldn't be any cause for concern. If he is licking this area excessively or having any trouble urinating, then I would recommend having it checked by your vet as these can be signs of an infection.

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Other Answers

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    Answered By Dr. Dayna, DVM, CVA

    Veterinarian, Certified Veterinary Acupuncturist

    Published on December 23rd, 2017

    A small amount of yellow to green discharge from the penis is considered normal. However, if there is so much that it is pooling on the floor when he lays down then that is abnormal and he should be evaluated by a veterinarian. Best of luck and thank you for using Pet Coach.

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    Answered By Dr. Massimo Orioles, DVM, Cert AVP, MRCVS

    Veterinarian

    Published on June 2nd, 2019

    If in moderate quantity and if not consistently present, this sign is not concerning as it could come from a normal discharge (called smegma) coming from penis skin glands. If consistently present may indicate a urinary tract infection and should be ideally checked as antibiotics may be needed.

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    Answered By Jennifer Summerfield, DVM CPDT-KA

    Veterinarian, Certified Dog Trainer

    Published on March 19th, 2020

    Hi there. It is completely normal to see a small amount of green or yellow discharge from the tip of the penis in male dogs. This is called smegma, and is a secretion of oils and skin cells from the inside of the prepuce (the sheath that covers the penis). So if your pup is acting normal, there is likely no cause for concern. If you've noticed any difficulty urinating, excessive redness in this area, or excessive licking of the penis or sheath, then these can be signs of infection. In that case, I would recommend a vet visit to have him checked and see if he needs an antibiotic or other treatment.

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