Menstruation?

Menstruation is a natural process that occurs in females of reproductive age, typically starting in their early teens and continuing until menopause. It involves the shedding of the uterine lining, which results in bleeding from the vagina. This process usually occurs every 28-35 days and lasts for about 3-7 days. Menstruation is a normal part of the menstrual cycle and is necessary for reproduction.