It is normal for menstruation to occur eight days early, and it is necessary to observe whether the menstrual cycle is regular, because menstruation is mainly regulated by changes in hormone levels in the body, and there is a great deal of individual variation. If there is a certain cycle is normal, if the menstrual cycle disorders for several consecutive months, we need to be vigilant about the possibility of physical discomfort, the most common is due to hormone level disorders caused by environmental and dietary fluctuations is the most common, due to excessive fatigue and often stay up too late can also lead to, usually need to pay attention to the combination of work and rest, a reasonable diet, dietary regularity, hygiene, and try to avoid eating too much spicy, Stimulating food, in order to prevent the possibility of menstrual disorders. During menstruation, you need to pay attention to the amount of menstruation and the color of menstruation, and if necessary, you need to carry out endometrial examination.