5. Hypertrichosis (Werewolf Syndrome)
Hypertrichosis describes hair growth on the body in an amount which is considered abnormal. This is a very rare condition and described as human werewolves because the sufferer resembles much of werewolf except having sharp claws and teeth. There are two distinct types of hypertrichosis: generalized hypertrichosis, which occurs over the entire body, and localized hypertrichosis, which is restricted to a certain area. Hypertrichosis is either congenital (present at birth), or acquired later in life.