Lycrophania

Lycanthropy is a disease that causes the victim to transform into a were-creature and is generally contracted by being bitten by a pre-existing one. All races can contract lycanthropy; however, Altmer, Argonians, Bosmer, and Redguards are resistant to it. This disease gives the infected a bloodlust, meaning they must kill every time they transform. It is believed that a cure for this disease exists in the Glenpoint foothills of High Rock.

Lycrophania is devided into two different strains of which lead to the diseased becoming either Werewolves, or Worgen. The Worgen are far less numeorus, but they are more easily able to control themselves thus making for a more acceptable society amongst the surrounding society they live within. The Werewolves are far more dangerous and only the offshoot of werewolves called the Lycan are even able to transform out of Wolven form.

Lycanthropy itself was created by Hircine, who now serves as the guardian of the people infected with lycanthropy.

Werewolves
Main Article : Werewolf


 * ...The very first Werewolves... a dangerous and infectious breed... created from Marcus' own flesh and blood: His twin brother, William...These were raging monsters. Never able to take Human form again.


 * - Andreas Tanis, describing the Werewolf species.

Werewolves are once normal humans who were infected by the first Werewolf or another of his victims. Unlike the second breed, called Lycans, this early breed were savage beasts incapable of thought or reason and could never take human form again, only after death.

Worgen
Main Article : Worgen