The normal menstrual period for girls is 3-7 days. The exact duration of the menstrual period should be judged according to the actual situation, which is different for everyone. Women’s menstrual periods may vary and are not always the same. As long as the amount and duration of bleeding do not change significantly, there is no need for treatment. The length of a woman’s period is affected by various factors, such as ovarian sex hormones or endocrine factors, and also by various factors such as external environmental factors or dietary factors, all of which directly affect the duration of a woman’s period. The bleeding volume of women is about 30-100 ml each time they have their period. If the bleeding is too much or the period is too long, timely treatment is needed.