My Cat Is Not Using Her Litter box

Question
Hey,
my cat has not been using her litter box for 2 weeks now, she seems to like using my house. She is 4 years old and has never done this before. What is wrong with her, or what can I do to help it stop? She is an indoor cat and about 4 weeks ago was on antibiotics because something had bit her while she was in the backyard. Does that have anything to do with her behaving like this!!!! Please try to help my parents want to give her away!!!!

-Agatha

Answer
Agatha,

I would give your vet a call and ask him if he checked her for a urinary tract infection or urinary crystals. They are painful and the cats associate that pain with the litterbox and go elsewhere.

I would also ask him if the antibiotic has any side affects that could cause her behavior.

Tabbi