There are five common reasons cats do this: unfixed, dirty litterbox, unhappy with litterbox in general (litter choice, box shape, location), UTI and stress. You have ruled out unfixed, and dirty litter box.
After you rule out UTI, consider any possible stress factors. New people in the house, someone leaving the house (moving out), new work schedule, recent vacation, new furniture, rearranging furniture, new diet, new pet, etc. Basically any change in routine.
Is this new, oe has she been doing it for a long time?
Sometimes cats can become finicky about the litter box itself. You can try a different type of box...if it's enclosed, try an open one and vice versa. Try a different location for the box. Get another box and have two available, try a different litter, etc.
Cats are a pain in the butt about peeing. I don't know why so many rental agencies say no to dogs but allow cats...it ought to be the opposite lol.
After you rule out UTI, consider any possible stress factors. New people in the house, someone leaving the house (moving out), new work schedule, recent vacation, new furniture, rearranging furniture, new diet, new pet, etc. Basically any change in routine.
Is this new, oe has she been doing it for a long time?
Sometimes cats can become finicky about the litter box itself. You can try a different type of box...if it's enclosed, try an open one and vice versa. Try a different location for the box. Get another box and have two available, try a different litter, etc.
Cats are a pain in the butt about peeing. I don't know why so many rental agencies say no to dogs but allow cats...it ought to be the opposite lol.