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How to identify which cat is peeing outside the litter box area?

Updated On September 23rd, 2025

Pet's info: Cat | American Shorthair | Female | unspayed | 4 months and 18 days old | 4 lbs

We have 4 cats, Tempest and Eevee being our actual pets, the other two our roommate's. One of the cats is pooping and peeing just outside one of the 4 litter boxes. How can we figure out which cat it is so we know who to take to the vet to get Dx? My bf, myself, and our roommate all work and my bf is asleep in the day when the other two of us are working. We can't keep a constant eye and we have no money for a camera setup to monitor them.

1 Answer

Most Helpful Answer

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Answered By Dr. Melanie, BVSc MS

Veterinarian

Published on November 20th, 2018

Take turns putting one in their own room with their own litter box, and leaving the other three out with the normal box. Switch a cat daily to be isolated, and that should help you narrow down who is going outside the box. I hope this helps!

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