Samurai gave good advice. The other thing is to try a different litter, particularly if the kitten was outside initially or not litter trained at all (odd ~ the few litters I've had were litter trained by 4-5 weeks old ... before they were weaned). If they can dig and it isn't so perfumed it gives them a headache most cats will use litter. There are cats that are picky as far as how litter 'feels' on their feet. Get small bags/boxes until you find one the kitten likes (and don't use 'clumping' litter until the kitten is at least 6 months unless it is naturally clumping with no bentonite!!). I use Arm and Hammer Essentials exclusively. It is scented, but it's a naturally clumping product with no dust, no bentonite, and completely biodegradable, made from corn cobs.
at 8:04 PM on Nov. 6, 2010