It is normal for girls to have their first menstrual period due to individual differences, so some will have more and some will have less. Because the ovarian function is not perfect when a girl has her first menstrual period, it is normal for her menstrual period to be irregular for about half a year or for the amount of menstruation to change. However, if the amount of menstruation is particularly heavy, it is clinically known as functional uterine bleeding. If the amount of menstruation exceeds 80mL every time, it is an abnormal phenomenon, and should be treated with oral medication, such as oral treatment of Tonic Jiale, which will effectively relieve this functional uterine bleeding. In addition, it is recommended that the diet should be strengthened after menstruation, if the menstrual flow is heavy, then it is appropriate to eat food to replenish blood after menstruation, such as pork liver, lean meat, spinach and so on, which can play a role in replenishing blood.