What does mentruation mean?

Menstruation is the monthly process in which the female body sheds the lining of the uterus when a fertilized egg does not implant. This results in a discharge of blood and tissue through the vagina, typically lasting between three to seven days. Menstruation is a key part of the menstrual cycle, which prepares the body for potential pregnancy. It usually begins during puberty and continues until menopause.