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My dog's penis is swollen and won't go back in. Why is he licking?

Updated On September 23rd, 2025

Pet's info: Dog | Chihuahua | Male | unneutered | 10 years and 4 months old | 8 lbs

My dogs penis appears swollen and will not retract fully. He always licks himself so I am not sure if that is related but he is doing this.

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1 Answer

Most Helpful Answer

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Answered By Vanessa Yeager DVM MPH

Veterinarian

Published on September 4th, 2017

Hi and thank you for your question on Petco Pet Education Center, formerly Petcoach! He may be licking himself near his genital area because he is painful near the area. Although it is hard to say exactly what the problem is without seeing Taco in person, I can offer a few possibilities: The redness near the tip of his penis may indicate a mass (tumor) or a urethral prolapse. Failure to retract the penis for a prolonged period of time (more than 15 mins), is an emergency and needs to be treated as soon as possible at a veterinary hospital. It is possible a mass or urethral prolapse is causing the penis to not retract fully and this can alter his ability to urinate normally which is a concern. A veterinarian will be able to examine Taco and make an accurate diagnosis and will be able to treat Taco accordingly. I hope this helps and I hope Taco can be seen soon and make a swift recovery!

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