The main way to expel uterine waste is through menstrual flow, along with the shedding of the endometrium, which flows out of the vagina along with the blood. All the functional layers of the endometrium are shed and then proliferate to form a cycle, all under the action of hormones in the body, so you need to pay attention to more rest, work and rest, do not overwork and stay up late to avoid endocrine disorders that can lead to a prolonged menstrual cycle or period duration, or even the possibility of amenorrhea. Pay attention to a light and hygienic diet and do not eat greasy and indigestible food. You should pay attention to the amount and color of your menstrual period, as well as the presence of unpleasant odors and abdominal pain. The normal duration of menstruation is about 3-7 days.