What age is normal for girls to start menstruation?
Oct 20, 2023
Source: Cainiu Health
Dr. Zhao Xiaodong
Introduction
Generally, it is normal for girls to start menstruating between the ages of 10 and 16, with individual variations. Menstruation is a physiological process involving the shedding and bleeding of the uterine lining in response to the cyclical changes of the ovaries. Typically, when a girl's ovaries have matured, an egg is released at regular intervals. During ovulation, hormonal changes in the body cause the endometrium (uterine lining) to thicken and proliferate.
Generally, it is normal for girls to start menstruating between the ages of 10 and 16, with individual variations. The detailed explanation is as follows:
Menstruation is a physiological process involving the periodic shedding and bleeding of the endometrium in response to cyclical changes in the ovaries. When a girl's ovaries mature, an egg is released at regular intervals. During ovulation, hormonal changes in the body cause the endometrium to thicken. If the egg does not combine with sperm to form a fertilized egg during this period, the endometrium sheds and bleeds, resulting in menstruation. Since most girls' ovaries mature between the ages of 10 and 16, it is normal for menstruation to begin within this timeframe. However, due to differences in individual physical conditions, the exact timing may vary.
If a girl has started menstruating, it is recommended to stay warm, avoid staying up late, maintain a regular sleep schedule, and avoid excessive fatigue to prevent disruptions to the menstrual cycle.
