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My dog is pooping bright red blood. Is it serious? What should I do?

Updated On September 23rd, 2025

Pet's info: Dog | Maltese | Male | unneutered | 1 year old | 11 lbs

My dog is pooping bright red blood, at fist he just had a diarrhea but now ita just blood. What is going on? What can I do?

1 Answer

Most Helpful Answer

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Answered By Laura Johnson VMD

Veterinarian

Published on May 13th, 2018

Hi, thanks for using Petco Pet Education Center, formerly Petcoach! Poor Miki! Blood in the diarrhea indicates inflammation with in the colon. It isn't uncommon for a dog with severe diarrhea or diarrhea for a few days to develop blood in the stool. The blood can cause significant dehydration so it is important to make sure he isn't very lethargic and it drinking. If the diarrhea is severe (accidents in the house, can't hold it and asking to go out often) then I recommend fasting him for 12-24 hours. Do not limit water. This will allow his GI tract to calm down. Then restart feeding with a bland diet of boiled chicken or hamburger with rice. Feed 1 cup per 20 lbs per day. If he is very lethargic, starts vomiting and will not eat or drink he should be seen by a Vet today. Otherwise you can do the above and have him seen, if needed, by your Vet when they open. I wish you and Miki the best!

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