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My cat has hard, dark poop and isn't using his litter box. Why?

Updated on September 23rd, 2025

Pet's info: Cat | American Shorthair | Male | neutered | 5 years and 3 months old | 13 lbs

My cat hadn't pooped for 2 days. He pooped today. It was kind of hard, dark poop. He also hasn't been pooping in his litter box. Why is this?

1 Answer

Most Helpful Answer

Jessica Keay, DVM

Answered By Jessica Keay, DVM

Veterinarian

Published on August 5th, 2017

It sounds like Mr Darcy is constipated. He may not poop in the box because it may be painful to poop and he associated the box with the discomfort. I would consider getting an over the counter hairball laxative such as laxatone at the pet store. These can help mild cases of constipation. If he isn't pooping normally with this or has vomit/lethargy/decreased appetite then a vet exam is needed. You can read more at http://www.veterinarypartner.com/Content.plx?P=A&S=0&C=0&A=634
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