My cat Apollo was diagnosed with crystals in his urine caused by a high pH level. He is currently on antibiotics and a special diet. This has been going on for a almost two months. The hard part is he is constantly locked up in my room because my mother doesn't want him lose with this problem. He pretty much pees anywhere if he has to go. My problem is he not only pees outside the litterbox but poops outside the litterbox as well. I have a small room with two cats, my other cat just pees outside litter box because he is depressed. I can't fit another litterbox in the room. Is there anything i can do to incourage my cat to use the litterbox?
I know this might sound dumb but if the crystals caused pain he may be associating the pain with the litter box. I had this problem with one of the cats that had a cyst.
We ended up buying a 2 different litter boxes and in time she did go back to it.
Another option is since your cat is in a small area be sure to feed the cat where it is urinating. Cats do NOT like to eat in an area they use as a toilet. Make sure the litter box is far from the food.
You can also try changing the brand litter too.
Be sure to throughly clean the area after EACH accident whether it is urine or feces. This should take away the smell and discourage future use of the area.
I have heard very good things about Cat Attrack cat litter. It's a bit expensive but cats love to use it and it last a long time. There's a Cat Attrack litter additive that people are having great success with too.