My new puppy has bloody, black, tarry poop. What should I do?
Updated On September 23rd, 2025
Pet's info: Dog | Mixed Breed Small (up to 22lb) | Male | unneutered | 2 months and 19 days old | 5 lbs
We just bought a puppy and he seems to have bloody tarry poop.
3 Answers
Most Helpful Answer
Published on November 26th, 2017
Thanks for using Petco Pet Education Center, formerly Petcoach! I highly recommend that you have Nico evaluated by a veterinarian as soon as possible for further assessment and treatment. Black tarry stools can be observed with upper gastrointestinal ulceration and bleeding. Things like parvovirus, gastrointestinal ulcers or parasites, among other possibilities can cause that. Good luck!
2Pet Parents found this answer helpful
Related Answers from Veterinarians
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Published on December 23rd, 2017
Dark, tarry stool is an indication of a small intestinal bleed possibly from the bone or an ulcer. The main thing to continue to monitor for is bloody diarrhea with frank, red blood, vomiting and lethargy. If any of this is noted, you will need to find an ER clinic for further care. You can feed boiled chicken and rice since it is bland and easy to digest until the stool returns to normal.
1Pet Parents found this answer helpful
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Published on July 4th, 2019
Dark tarry stools can be a sign of bleeding in the intestinal tract, so I would recommend monitoring your puppy closely and if the stools continue to have this appearance, or if he stops eating, vomits, or becomes weak he should see the veterinarian.
2Pet Parents found this answer helpful
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