He has sexual fantasies, urges, or behaviors that involve watching a person who is naked, undressing, or having sex. The person who is being observed is nonconsenting, and not aware that he or she is being watched. The voyeur usually masturbates at the time he is watching or later while remembering. Sexual contact with the person or persons observed is not sought. Voyeurism is illegal.
Victims often report feeling violated or frightened if they notice the voyeur.
Because voyeurs do not hurt anyone and because they are secretive, they are rarely caught. As with most sexual disorders of this type, they rarely seek treatment on their own. As a result, we do not know much about voyeurs and voyeurism. The average age of onset appears to be before age 15. The disorder appears to be lifelong unless treated.