Since the discharge of menstrual blood leads to the discharge of a large amount of trace elements and nutrients, it is necessary to eat foods rich in iron and other trace elements, such as lean meat, beef, animal offal, spinach, etc., before menstruation to prevent the possibility of iron deficiency anemia. However, you need to avoid eating too much cold food to prevent discomfort or prolonged periods. During the premenstrual period, you should avoid overworking and staying up late, quit smoking and drinking, avoid excessive exercise, and avoid eating too much oily food. Avoid excessive stress and maintain a happy mood to prevent endocrine system disorders, which may lead to menstrual disorders. The regulation of menstruation is mainly due to hormonal changes in the body, and if there is a dysfunction it can lead to the possibility of menstrual disorders or amenorrhea.