this period produce long-lasting effects for individual and public health and, in various ways, a nation's future lies in the strength and objectives of its youth population. [1] Nearly, in 500 BC, Sushruta Samhita noted that Indian girls commenced to menstruate at the age of 12 years. The importance of menstruation and menarche can be gauged by writing in Mahabharata that, "Each time an unwedded maiden has her monthly course, her parents or guardians are guilty of heinous crime of slaying the embryo." Therefore, the father tried to find a husband for his daughter as early as possible after the commencement of menstruation. [2] The main physiological development that occurs in adolescent girls is the beginning of menarche. After that, many girls face problems of irregular menstruation, excessive bleeding, and dysmenorrhea, interrupting their educational and social lives. [3] Numerous psychological and social responses arise as a result of menarche and menstruation in them. More Background: Awareness about reproductive health, inclusive of menstruation hygiene, is generally lacking in adolescent girls because of sociocultural barricades in which they grow up. Objective: To study the knowledge, practices, and sources of data pertaining to menstruation and hygiene among adolescent girls in Kuppam,