The term “vacation” refers to menstruation. After the removal of the uterus oral progesterone during the period will not come to menstruation, usually about 1 week after the withdrawal of the drug will appear withdrawal bleeding, if 1 week still no menstruation, consider the endometrial damage, incomplete removal of the uterus, leakage of suction and so on may be. The removal of uterus surgery has some damage to the uterine lining, usually about 1 month after the operation will come to menstruation. After the removal of the uterus oral progesterone to the endometrium to play a role in regulating, oral medication during the period will not appear menstruation, usually in about 1 week after stopping the drug menstruation. However, if the removal of the uterus causes serious damage to the lining of the uterus, resulting in uterine amenorrhea, even if the oral progesterone can not menstruation. In addition, if there is incomplete evacuation of the uterus, leakage of suction and other conditions, oral progesterone will also not menstruation. If the patient does not have menstruation even after one week of stopping oral progesterone, it is recommended to consult a doctor, improve the examination, clarify the cause of the disease and treat it as soon as possible. All of the above medications should be used under the guidance of a doctor, avoid self-medication.