When is it normal for girls to have their periods?

People continue to grow, both mentally and physically, boys will become boys, girls will become women, and girls' menarche is one of the signs of female growth, so it is actually very important to properly understand some knowledge about girls' menarche. Next, I will introduce to you when girls will have their periods, and how many days a woman's menstrual period lasts.

When does a girl's period come?

The menstrual cycle is calculated from the first day of menstrual bleeding until the first day of the next menstrual bleeding. This interval is the menstrual cycle. If you go to the obstetrics and gynecology department for treatment, the doctor will often ask about the due date of pregnancy. The due date of pregnancy refers to the time of the most recent menarche from the time of consultation, that is, it should be calculated from the first day of bleeding. It should be noted that the due date of pregnancy refers to normal menstruation, and abnormal vaginal bleeding should not be mistaken for menstruation. To judge whether it is a normal menstrual period, you can observe it from two aspects: bleeding and bleeding time. Abnormal menstruation usually has less bleeding than menstrual period, shorter or longer bleeding time, and loses the regularity of normal menarche.

What everyone may not be clear about is that the age of girls' menarche is different. In other words, the age of menarche is different for every girl. Generally speaking, the age of menarche is between 13 and 15 years old, but some girls may have their first menarche as early as 11-12 years old, or delay their menstruation until 17-18 years old. The early or late menarche of girls is affected by many internal and external factors, such as personal nutrition, physical fitness differences, etc., which all affect the age of menarche to a certain extent.

How many days does a woman's menstrual period last?

Menstruation occurs with the regular changes of the uterus and ovaries, and the uterine wall regularly sheds and bleeds. The occurrence of regular menstruation is a key indicator of complete reproductive function. The first menstrual period is called menarche in girls, which usually occurs between the ages of 13 and 14, but may be as early as 11 or as late as 15. The first day of normal menstrual bleeding is the beginning of the cycle. The time interval between the first days of two menstrual periods is called a menstrual cycle, which is generally 21-35 days, with an average of 28 days. The duration of each menstrual period is called the physiological period, which is generally 2-8 days, with an average of 4-6 days. The menstrual volume is the total amount of blood lost during one menstrual period. The normal menstrual volume is 20-60ml, and more than 80ml is considered menorrhagia.

That is, the normal menstrual period for women is 3 to 7 days, and the menstrual volume is about 30 to 80 ml. If a menstrual period lasts less than three days or more than seven days, it is generally called irregular menstruation. Sometimes irregular menstruation may be related to psychological, mental, or fatigue factors, and such things do not require special treatment. You can recover naturally by restoring your mental state, paying attention to rest, and maintaining a regular diet and lifestyle. If irregular menstruation lasts for three cycles or longer, it is generally related to endocrine imbalance, which requires medication for treatment.