my gp has some really gross stuff stuck in his hair on his rear end, what is this, it cant be his pee/poo because it has a differnt structure, attached is a picture of it
it doesnt seem to bother him and it doesnt wash away

home.attbi.com/~mzarifkar/Picture7.jpg

home.attbi.com/~mzarifkar/Picture8.jpg

here are some pictures I took of his back/butt they are taken with a webcam so they dont look that good but it ill do