Kitten Makes A Mess When He Poops

I have a two and a half pound male kitten who was rescued off the street. When
he poops, instead of crouching so his butt is elevated like a normal cat does,
he pushes his bottom into the litter and ends up with quite a mess stuck to his
behind. After I clean him up he drags his butt on the floor. He has been wormed
for roundworms twice and tapeworms once. His stools are pretty normal. Any
ideas what could be causing this behavior?

Neil
Cat Paintings At Carol Wilson Gallery
http://www.carolwilsongallery.com