Why will a cat quit using her cat literbox. She used to use the literbox and then all of a sudden she stopped. It is kept clean and she still doesn't use it. My nephew has tried shredded paper this didn't work and then he confined her to a room to herself and that didn't work. He has a total of four cats in the house. She will go right outside of the literbox, right next to it. But we do not understand why she has all of a sudden started doing this. Please help, if possible. Thank you for your time and your help.
Cats that live in a multi cat household sometimes need their own litterbox. If this does not work ask your vet to screen for a UTI
(urinary infection). If the test is negative try Valium b/c it could be a behavioral problem. vetcare