When your cat doesn’t use the litter box, they’re trying to tell you something is wrong in their life. Once you’ve taken them to the vet, if the vet determines the reason for the inappropriate elimination is not medical, you can begin the cat behavior detective work.
One reason they may not be using the box is because they’re unhappy with the box itself. It’s our job to figure out what they want. Since cats are a desert species, trying to replicate the experience of eliminating in the open desert could help!
This is part 2 in a series on litter box issues.