Congenital systemic hirsutism is extremely rare, and only 50 cases have been recorded since the Middle Ages. Due to genetic mutations, they suffer from werewolf syndrome, which causes the body to return to the ancestral phenomenon, such as hair all over the body. Except for this kind of werewolf, his life is the same as ordinary people.
The so-called “werewolf” syndrome actually refers to a phenomenon of returning to the ancestor with a large amount of hair throughout the body. Although this Chinese man looks like wolf hair, it is actually a rare congenital giant pigment nevus
