okay, this thread started to worry me because Kash is 13 weeks old and has thin hair on the top of his head... so, i googled "demodectic mange" and the photos are horrific!! Kash's head does not look anything like the dogs in the photos that had the mange.
but Kash has an appointment for shots on saturday, so i'll ask the vet about it then... i don't feel extremely worried about it, but it won't hurt to ask. the whole rest of his body is fine (no hair thinning or loss). on the contrary, he has very thick hair everywhere else!