[hayleybelle]

My yorkie, Hayley, just turned 8. She weighs 4.0 lbs. In the last few months her hair has been getting thinner and thinner...It's not in patches. It is an all-over thinning down her back. You can see her skin all the way down her back through her very thin hair! She is really looking bald. Vet did blood tests. Thyroid, hormones, etc are all fine. She doesn't think it is cushings disease because Hayley is lacking all the main symptoms. She is on a very good dog food. She isn't itching or scratching. Any thoughts as to what else could be causing this? Thank you!