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My dog is bleeding from her anus and won't eat. Is it an emergency?

Updated On September 23rd, 2025

Pet's info: Dog | Italian Greyhound | Female | spayed | 16 years old | 13 lbs

My 16 year old female Italian Greyhound is bleeding from her anus. It all started this evening. At first, she had dark brown diarrhea which looked like chocolate syrup. A few minutes later, she was leaking a thick, bright red (like fresh blood) mucus-like substance from her anus. Also starting this evening, she will not eat anything, including treats. Just this morning, she was fine. What are the possible causes? Should I take her to the emergency room tonight, or can I wait until the daytime?

1 Answer

Most Helpful Answer

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Answered By Dr. Elizabeth

Veterinarian

Published on October 26th, 2017

I'm sorry to hear Poe is not feeling well. I would recommend to take her into the emergency clinic. She's obviously not feeling well and they will be able to give her medications that should help her to feel better. They will also preform a thorough exam and likely recommend bloodwork and radiographs to look for the cause of the bleeding. Things that could cause the bleeding would be rectal masses, infected anal glands, poison, GI disease and neoplasia. The diagnostics will hopefully tell which one it is so you will know how to treat it. I hope Poe starts feeling better soon.

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