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My dog has watery, bloody diarrhea. What's wrong and what to do?

Updated On September 23rd, 2025

Pet's info: Dog | Rottweiler | Male | unneutered | 8 months and 11 days old

This is the second day in a row my dog has pooped a weird liquidy substance during our walks. It's really watery and has red stuff (looks like slimy blood). He spends the day in the backyard, and I haven't found this kind of thing there, but that just might be because it's so watery it kinda disappeares. This substance has a different smell than his normal poops, this is worse. After one lap I decided to take a pic and realized it was surrounded by ants. He's had normal and runny poops in betwee

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2 Answers

Most Helpful Answer

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Answered By Laura Johnson VMD

Veterinarian

Published on December 12th, 2017

Hi, thanks for using Petco Pet Education Center, formerly Petcoach! Poor Zeus! Based on your picture Zeus is having diarrhea with blood. The blood indicates inflammation with in the colon. Causes of diarrhea are: intestinal parasites, viral and bacterial infections, dietary indiscretion (ate something gross), food allergy or intolerance. toxin ingestion, pancreatitis. When blood is present it is best to have the pet seen for antibiotics. If he produces a stool with feces in it (not mucous and blood) then try to collect it to have it tested for parasites. You can also change him to a bland diet of boiled chicken or hamburger with rice. Feed 1 cup per 20 lbs per day. Feed the bland diet until 2 normal stools. I hope this helps and I wish Zeus a speedy recovery!

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    Answered By Ricardo Fernandez, DVM

    Veterinarian, Veterinary Oncology Resident

    Published on August 11th, 2019

    Thanks for using Petco Pet Education Center, formerly Petcoach! Diarrhea can be observed with conditions such as colitis, gastroenteritis, dietary indiscretion, intestinal parasites, among many other possibilities. I recommend that you have Zeus evaluated by your veterinarian for further assessment and treatment. They may choose to check for parasites and to start medications for diarrhea depending on the results. Good luck! Hoping for a speedy recovery!

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