Big eyes can set off the beauty of women who love beauty, and make women who love beauty more attractive and temperament. Therefore, many women who love beauty have single eyelids and small eyes. With double eyelid surgery becoming more and more popular among women who love beauty, many women have doubts about whether they can do double eyelid surgery during menstruation. Hu Junfeng plastic surgery experts will tell you that it is best for women not to have double eyelid surgery cut during menstrual period, because under normal circumstances, blood clots should form quickly on the wound surface after cosmetic surgery. However, during menstrual period, women will destroy the blood clots on the wound surface after cosmetic surgery due to the increase of plasminogen precursor activator in blood, which will cause bleeding or prolonged bleeding time, and in the case of invasion of pathogenic bacteria, it will cause wound infection. Coagulated fibrin and hemolyzed plasminogen precursor activator exist in human blood. Only when these two substances are in balance can human blood flow normally. However, during menstruation, due to the large increase of precursor activator in blood and uterus, women can cause periodic uterine bleeding. In order to prevent wound infection after double eyelid surgery, experts in Hu Junfeng suggest that women can have cosmetic surgery within three days after menstruation stops. In addition, women who take birth control pills should not take double eyelid surgery during the medication, because birth control pills can also lead to the increase of plasminogen precursor activator.