But Yuting is likely to have some influence on women's menstruation. In the normal menstrual cycle, in the first half of the menstrual cycle, the hormone composition in women is estrogen, and in the second half of the menstrual cycle, the hormone composition in women becomes estrogen and progesterone. Therefore, if you take Yuting in the first half of the menstrual cycle, it may cause great interference to menstruation and is prone to vaginal bleeding. Some have little bleeding, some have the same menstrual flow as usual, and the skin may be accompanied by spots.