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My dog's penis is dark red and swollen. Should I take him to vet?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed Medium (23 - 60lb) | Male | unneutered | 2 years and 6 months old | 26.8 lbs

My dog's penis is dark red and swollen. What may be causing this?

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1 Answer

Most Helpful Answer

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Answered By Dr. Macartney, BVet Med, MRCVS

Veterinarian

Published on August 1st, 2017

Unfortunately from the picture you have provided it looks like Patches has developed PARAPHIMOSIS. This occurs when the glans penis extrudes from the prepuce and over a period of time the swelling caused by irritation, drying out and contact with environmental factors causes the penis to swell to a size which prevents it returning into the prepuce. Due to the change in color I am concerned about blood blow and the safety of the tissues. I would take Patches to the veterinarian immediately for medical intervention. The vet will make Patches for comfortable by eliciting pain relief. The veterinarian team will then attempt several approaches to safely return the penis to the prepuce. This can include lubrication and careful manipulation. The use of medications to reduce the swelling may also be used. Occasionally a small surgical procedure is required to correct the problem. I am so sorry that this has happened to Patches and I hope he receives medical attention soon and this issue is resolved. Best of luck to you both.

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