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Why does my male dog's penis bleed around a female in heat?

Updated On September 23rd, 2025

Pet's info: Dog | American Pit Bull Terrier | Male | unneutered | 4 years and 1 month old | 60 lbs

I have a male dog that keeps bleeding from his penis but only when a female dog is in heat. What does that mean?

4 Answers

Most Helpful Answer

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Answered By David Elbeze, DVM, MRCVS

Veterinarian

Published on November 18th, 2016

It could be either from the act of mounting the female (physical injury) or from a prostate disease that is causing the bleeding. I believe it would be best to have Optimus neutered to prevent this from happening.

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6Pet Parents found this answer helpful

Other Answers

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    Answered By Dr. Melanie, BVSc MS

    Veterinarian

    Published on April 26th, 2017

    These blood spots from Obey's penis could be from mating with the female dog in heat. The blood could also be hers from her heat, or he could have done a little bit of damage to his penis from vigorous mating. I would keep an eye on Obey for now, and if this bleeding increases, he appears painful, or the irritation gets worse, I would have him seen by a vet.

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    2Pet Parents found this answer helpful

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    Answered By Jennifer Summerfield, DVM CPDT-KA

    Veterinarian, Certified Dog Trainer

    Published on February 19th, 2017

    Blood dripping from the penis of an intact male dog is most often caused by an enlarged prostate - your vet can do a rectal exam as well as x-rays or ultrasound of the prostate to confirm this. If this is the case, neutering normally resolves the problem.

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    1Pet Parents found this answer helpful

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    Answered By Karly Macon, DVM, MS, CVA Certified Veterinary Acupuncturist

    Veterinarian

    Published on April 5th, 2017

    Ow! King is not neutered, so if he has been breeding other dogs this could be caused by trauma to the penis. Another concern would be bladders stones or urinary tract infection. If he can't seem to urinate normally, this is an emergency. If the bleeding continues and is not an isolated event, I recommend scheduling an appointment with your veterinarian for an exam, urinalysis, and bladder xray/ultrasound.

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    2Pet Parents found this answer helpful

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