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My dog is bleeding from his penis and has bloody poop. Is it serious?

Updated On September 23rd, 2025

Pet's info: Dog | Mixed Breed Small (up to 22lb) | Male | unneutered | 16.5 lbs

Blood just came out of my dogs penis while he was walking around the house and earlier his poop was quite bloody. His diet has consisted of dog food and he has received frequent lamb bones to which he chews. He has also been panting a lot recently. He is a 3 year old Male Shih tzu beach on cross who is not muted. If you could tell me what is wrong that would greatly be appreciated. Thanks

2 Answers

Most Helpful Answer

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Answered By Ana M, DVM

Veterinarian

Published on May 2nd, 2018

Thank you for submitting your question regarding Treakle. I would recommend that he sees his veterinarian. Blood in the stool can be the result of straining to defecate or inflammation in the colon. A lot of times, it is accompanied by diarrhea. He will likely need an antibiotic to resolve the blood in the stool. The blood coming from his penis is less common. Has there been any blood in his urine? Is he straining to urinate? This can be a sign of a urinary tract infection or bladder stones. Other causes of blood from the urinary system are prostate disease or a mass or irritation on the penis itself. Is there any chance he was exposed to rat poison such as D-con? This will cause a bleeding disorder in the dog. He will need to see his veterinarian to see if these scenarios apply to him and the best course of treatment. I hope this information helps!

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Other Answers

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    Answered By Tomasz Wnuk

    Veterinarian

    Published on August 16th, 2020

    Hello and thank you for contacting Petco Pet Education Center, formerly Petcoach. Presence of blood in urine is usually related to urinary tract infection, prostate problems or bladder stones. If Marshall is not able to pass any urine, you should take him to your local vets as an emergency. Blood in stools is probably not related to presence of blood in urine. It could be a sign of infectious gastroenteritis, intestinal worms, food indiscretion, allergy and more. This problem should be also investigated and treated as soon as possible.

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