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Why is my old dog bleeding from her anus and peeing uncontrollably?

Updated on September 23rd, 2025

Pet's info: Dog | Shih Tzu | Female | unspayed | 17 lbs

Hi there. My dog is having trouble going to the bathroom and just today has been excessively bleeding on my carpet (bright/light red) from her anus. She also has been peeing uncontrollably. She is around 15-17 years old shih tzu

1 Answer

Most Helpful Answer

Sara Farmer, DVM

Answered By Sara Farmer, DVM

Veterinarian

Published on January 15th, 2020

This could be bloody diarrhea from colitis, pancreatitis or a number of other diseases. It's also possible that the blood is coming from an anal gland. I would recommend seeing an emergency veterinarian right away - if there is excessive bleeding she may become dehydrated quickly.
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