Like most hairless dog breeds, the Chinese Crested Dog comes in two varieties, with and without fur, which are born in the same litter: the Powderpuff and the Hairless. A true Hairless often does not have as much furnishings (hair on the head, tail, and paws). The difference between a very hairy Hairless and a Powderpuff is that the Hairless has a single coat with hairless parts on the body, while the Powderpuff has a thick double coat. Eyes are a concern within the breed, with many suffering from a painful and blinding inherited eye disease called Primary Lens Luxation (PLL). The Chinese Crested Dog can also have at least two forms of progressive retinal atrophy (PRA) which can eventually lead to blindness as well. Eyes are a concern within the breed, with many suffering from a painful and blinding inherited eye disease called Primary Lens Luxation (PLL).