Cách sử dụng
Menstruation is a natural process that happens to the female body. It is the shedding of the uterus lining after a woman has not become pregnant during a menstrual cycle. It usually happens once a month, and it can last for a few days to a week. The term "menstruation" is often used when talking about women's health, reproductive biology, and sexual health. You may hear this word in a conversation between women, or in a biology class.