How long after withdrawal bleeding does menstruation come?
Withdrawal bleeding is mainly a side effect caused by taking progestin medications or emergency contraceptives. Generally, menstruation occurs about two weeks to one month after withdrawal bleeding, with the exact timing related to the amount of bleeding.
1. Heavy bleeding
If progestin medication is taken and the withdrawal bleeding is heavy—reaching the usual volume of a regular menstrual period—and lasts 3–7 days, it can be considered as one menstrual cycle. The next period typically comes after a normal menstrual cycle interval, approximately one month later.
2. Light bleeding
If emergency contraception is taken during the follicular phase and only causes partial shedding of the endometrium, the resulting withdrawal bleeding is usually light. This does not affect the normal onset of menstruation, which generally occurs about two weeks later.
It is recommended not to take medications without medical advice. After experiencing withdrawal bleeding, closely monitor the arrival of your next period. If menstruation does not resume after a prolonged period, seek medical evaluation at a hospital, including ultrasound and six-item sex hormone tests, to identify the cause and receive appropriate treatment.