The notion that a woman drains her blood by eating fruits or other foods during menstruation is false and needs to be taken care of. Menstruation refers to the cyclical shedding of the endometrium and bleeding that occurs along with the cyclical changes in the ovaries. As the ovaries secrete estrogen and progesterone periodically, the lining of the uterus gradually thickens and the small spiral arteries inside the uterus gradually grow. Since the small spiral arteries grow faster than the endometrium, they are easily squeezed, bent and ruptured. Therefore, menstrual blood consists of blood from the shedding of the endometrium and the rupture of small arteries, and there is no such thing as “bruising”. Women need to pay attention to diet during menstruation, suitable for eating light and nutritious food, can eat oranges, grapes and other fruits.