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My puppy has bloody diarrhea but isn't lethargic. What's wrong?

Updated on September 23rd, 2025

Pet's info: Dog | Mixed Breed Small (up to 22lb) | Male | unneutered | 6 months and 20 days old | 8 lbs

My puppy (7 months) pooped and had blood coming out. It was dihherea but he seems to be really active and not at all lathargic.

1 Answer

Most Helpful Answer

David Darvishian

Answered By David Darvishian

Veterinarian

Published on September 6th, 2017

Hi and thanks for using Petco Pet Education Center, formerly Petcoach! Sorry to hear about Colby. This falls into one of these categories since you say that he isn't acting sick- Any clinical sign (diarrhea) that persists, worsens, or other signs develop (nausea, vomiting, lethargy, etc) this indicates that Colby should be seen by your veterinarian to assess what is going on. So I would just monitor his stools over the next 6-12 hours and watch for other signs. If things worsen, signs persist, or new signs develop, take him in immediately and let your vet take a detailed history and do a physical exam. They may advise some tests which could include fecal/blood tests, x-rays, etc to determine if a problem is present. A treatment plan can be made once a cause is determined or suspected. Bloody diarrhea can be caused by many things including intestinal worms, dietary problems, dietary indiscretion (eating things a dog should not eat), exposure to a toxin by ingestion, infection, etc. Good luck with Colby.
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