ménstruation
Menstruation is the monthly shedding of the uterine lining in people with a uterus. It is a natural biological process that occurs as part of the reproductive cycle. The cycle typically begins with menstruation, which lasts for a few days. Following menstruation, the uterine lining rebuilds itself in preparation for a potential pregnancy. If pregnancy does not occur, the lining is shed again, marking the beginning of the next menstrual period.
The timing of menstruation is regulated by hormones, primarily estrogen and progesterone. These hormones fluctuate throughout
Menstruation is often accompanied by various physical and emotional symptoms, collectively known as premenstrual syndrome (PMS).