Originally Posted by **********

You've got it all wrong.

A cat will avoid its litter box for several reasons. It has to be very clean of course, but what alot people miss is that they cat may be sick.

Cats can have urinary tract infections, kidney problems, crystals in its urine etc which cause it to have pain when he or she pees. It associates the pain with the litter box and then decides to go somewhere else.

Cats can also have problems with his or her anal glands. The glands normally secrete scent marking oils but they can easily get plugged up causing pain and discomfort which again makes cats avoid their litter box.

Both conditions are easily diagnosed and treated by a vet.