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My cat's butt is red and swollen. Why won't she use her litter box?

Updated On September 23rd, 2025

Pet's info: Cat | Mixed Breed | Female | 12 lbs

my cat only sleeps and eat but she is not using her litter box and her butt is red like swollen

1 Answer

Most Helpful Answer

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Answered By Angel Alvarado, LVT

Licensed Veterinary Technician

Published on July 28th, 2018

Misha should be physically examined by your veterinarian to diagnose or rule out constipation, obstruction or a rectal prolapse. Submit a stool sample to diagnose intestinal parasites which can lead to diarrhea and potential prolapse from straining. If she is constipated, your vet may need to sedate her and manually empty her out. IV or subcutaneous fluids may be necessary to correct dehydration which can be a contributing factor. An obstruction, if diagnosed, may require surgery to correct.

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