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Why is my dog's diarrhea bloody and lasting for almost a week?

Updated On September 23rd, 2025

Pet's info: Dog | Australian Cattle Dog | Female | spayed | 25 lbs

My 1.5 year old Heeler has diarrhea with blood in it. She’s done this before and we were told she just had a upset stomach And was provided medication. She is not lethargic, she just eats slower than usual but still eats all of her food. We are thinking she had gotten into the trash but this has been happening for almost a week

1 Answer

Most Helpful Answer

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Answered By Ana M, DVM

Veterinarian

Published on December 2nd, 2019

Thank you for submitting your question regarding Cricket. If she has had diarrhea with blood for a week, this is worrisome. She needs to see her veterinarian. Blood, if it bright red, is typically from the colon. There are bacteria in the feces that are now open to the bloodstream. It is important to determine the cause of her symptoms such as pancreatitis, a bacterial overgrowth or an intestinal infection. If she is vomiting blood, hemorrhagic gastroenteritis is possible. It is a good idea to start her on medication before she becomes more sick. I hope this information helps!

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