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Why is my dog having bloody diarrhea after dental surgery and meds?

Updated On September 23rd, 2025

Pet's info: Dog | Fox Hound | Female | spayed | 7 years and 8 months old | 52 lbs

My beagle mix dog (which is a rescue) has a mucous diarrhea with fresh blood present. She recently had 2 teeth extracted. She has been on antibiotics before and after the extractions. Along with pain med's. Now this showed up. I also have another dog that was rescued with her. Is it a possibility that there was an injury to her rectom or large intestine from the surgery

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Answered By Dr. Elizabeth

Veterinarian

Published on June 23rd, 2019

If Maude had surgery on her mouth, it is unlikely that her colon or rectum would be affected. Instead I would be more concerned that a reaction to the medication or a bacterial over growth is the cause. Any time blood is present, you need to see the veterinarian. Call them today and start Maude on a bland diet. Your veterinarian may make recommendations about switching the antibiotic, adding in a probiotic and is generally the best one to guide the treatment. I hope she starts feeling better quickly.

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