This volume comprehensively focuses on amenorrhea, one of the most important diseases in gynecology, affecting women from puberty to menopause. Amenorrhea is analyzed from its etiologies, pathogenesis, consequences and treatments throughout puberty, food and cycle disorders, exercise and stress impact, fertility- and sexual-related affection, and menopause transition. Written by experts in the field, this book will be of benefits to residents, general practitioners and specialists, gynecologists and endocrinologists, who deal with women's health care.