I hear it affects silk coated yorkies. she had it when I got her loooooong story.but i thought he was a modified coat and now he has it which I thought only silks get so that must mean he has a silk coat???? so confused but I am happy and lucky to have found yt with all the wonderful and knowledgeable breeders here. someone will help me soon. vets are stumped and so are the groomers.what's a girl to do