Amenorrhea is the unnatural cessation of menstruation. In young women, it is often an early warning sign of the eating disorder anorexia nervosa. In this engagingly written book, the author explains the main causes of amenorrhea as well as the ways in which the disorder is treated in young women. The author also walks the reader through a typical OB/GYN examination, shining a light on a subject whose unknowns often cause anxiety in young women.