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My dog is bleeding from his penis, seizing, and vomiting. What's happening?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed Medium (23 - 60lb) | Male | unneutered

Hi my dog is bleeding from his penis over 2 weeks now and he also sometimes experience something like a seizure. He gets weak and drifts to fall, his stomach and tail pulls in and he gaggs as if he wants to commit. I also noticed that he vomited a large amount of yellow frothy liquid. Can you please help me with what is the cause of these things?

2 Answers

Most Helpful Answer

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Answered By Jessica Keay, DVM

Veterinarian

Published on March 16th, 2018

I am so sorry to hear about Prince. It sounds like he needs to see a veterinarian as soon as possible. Possible causes for the bleeding from the penis include bladder stones, infection or inflammation of the bladder or prostate, tumor of the prostate or bladder, wound on the penis or problem with the urethra, and bleeding disorders. Your dog needs a good physical exam to start off- the vet can palpate the prostate and bladder and check the penis for problems. They then may recommend a urine test and an x-ray or ultrasound to check the bladder and prostate. They can then get more information on these episodes you are describing, as well as listen to his heart and lungs to be sure these spells he is having aren't fainting/weakness related to a heart issue. They can also x-ray his stomach and do bloodwork to check for underlying causes for his vomiting. It sounds like he is quite ill so I would get him in to the vet right away. Best of luck to you and Prince.

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

    Veterinarian

    Published on May 3rd, 2018

    This could be caused by a variety of problems starting from a lesion on the penis itself (usually infective or traumatic), a urinary tract inflammation/infection, a problem related to the prostate (infection/inflammation and, depending on his age, a tumor could be included in the list). A check up and further diagnostic tests (urine analysis and possibly ultrasound of the prostate and samples from there) would be useful to understand exactly the underlying cause and decide appropriate treatment. Hope this answer was helpful, but please do not hesitate to contact us again on the forum or by requesting a consultation if you have any more questions or to discuss it any further.

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    1Pet Parents found this answer helpful

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