Early menstruation is a relatively common problem for women, and the causes of early menstruation are complex. There are three main reasons: First, excessive mood swings and stressful life can cause early menstruation in women. Women need to relieve mental stress and avoid excessive mood swings. Excessive mood swings are the main cause of abnormal menstruation, avoid great sadness and happiness, otherwise it will affect the female endocrine balance, thus causing abnormal menstruation. Second, changes in the living environment and the external environment can also affect women’s menstrual cycle, and therefore can lead to early menstruation. Environmental factors still have a big impact on women’s bodies, as women moving or moving jobs may lead to menstrual disorders. Third, when women suffer from gynecological inflammation and tumor diseases, they will also have menstrual cycle disorders, and some patients will have early menstruation. If women have early menstruation for a long time, they must be alert to gynecological diseases. Therefore, we must pay attention to the prevention and treatment of gynecological diseases in general.