Menstruation is not completely inoperable. For example, someone has cerebral hemorrhage and needs craniotomy. You can't manage your menstrual period at this time, but it's important to save your life. Plastic surgery belongs to elective surgery (that is to say, you can choose the time, not the kind of surgery that must be done immediately in an emergency), so it is more reasonable to avoid menstrual period. If surgery is performed during the menstrual period, due to the specific physiological reasons of women, the bleeding of the surgical wound may be more than usual, which is more likely to cause hematoma, and the postoperative recovery period will be prolonged. Moreover, excessive intraoperative bleeding may also affect the doctor's judgment and lead to operational errors. You wanted to be beautiful, but if you are not good at it, you will become ugly. Moreover, menstrual women are prone to physical fatigue and mood swings, and it is more likely to lead to postoperative infection due to the decline in anti-infection ability. Therefore, non-emergency cosmetic surgery must avoid menstrual period. Generally speaking, it is advisable to have plastic surgery 5 days after menstruation.