There are many reasons for early menstruation, such as oral contraceptives, overexertion, mental stress, irregular work and rest, etc. It is normal for women to have their periods three days early. If the amount of menstruation is normal, about 80ml per period, or if there are no symptoms such as dizziness, panic, mental discomfort, insomnia, etc., there is generally no need to worry. It is usually normal for menstruation to be early or pushed back by seven days, and no special treatment measures are needed. If your period is seven days early or seven days late for two months in a row, or if it comes once every ten days, it is considered to be irregular, and further examination is needed to identify the cause and deal with it. If your period is only three days early, it is recommended to continue to observe, relax, pay attention to rest, exercise properly, do not stay up late, eat more high-protein food, and pay attention to keep warm.