Popular theories for how an individual is transformed into a werewolf include being bitten by a werewolf; consuming the flesh of a werewolf; and consuming water that has been touched by a werewolf. Additional methods are being conceived on a new moon and being cursed.
Ideas about how an individual is transformed into a werewolf vary greatly from culture to culture. Superstitions in many European countries dictate that werewolves are in allegiance with Satan or touched by evil. According to Dictionary.com, it is thought that werewolf legends stem from an actual condition called lycanthropy, in which affected people believe they are wolves and develop canine behavioral characteristics.