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Why is my cat throwing up dark vomit, not eating, and pooping outside?

Updated On September 23rd, 2025

Pet's info: Cat | Mixed Breed | Female | spayed | 10 lbs

Harley my 3 year old spayed cat has thrown up coffee ground substance and found disturbing poop outside her littler box. She’s an inside cat. She isn’t eating and she has never been one to turn down food.

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1 Answer

Most Helpful Answer

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Answered By Mariya Gugel, DVM

Veterinarian

Published on March 5th, 2018

Poor Harley! I can see that her vomit is dark and grainy. This can be a sign of gastric bleeding, which can be caused by ulcers, foreign bodies, and certain parasitic infections. Ulcers can be caused by an overdose of certain pain medications, steroids, or occur on their own. I recommend having Harley seen by a vet right away as these conditions can be very painful and even life threatening. I hope all is well and that Harley feels better soon!

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