Taking medication to promote menstruation is to take progesterone preparations under the guidance of a doctor, generally need to take medication for 10 to 14 days, within 1 week of stopping the drug will usually have menstruation, so the general 17 to 21 days can be effective.
Women can take progestin preparations such as progesterone under the supervision of a doctor, so that the endothelium undergoes a secretory phase reaction, and it is only after stopping the drug that the endothelium is stripped off and menstrual vaginal bleeding occurs, thus playing the role of urging menstruation. Progesterone preparations generally need to be taken orally for 10~14 days, and menstruation can occur within 1 week after stopping the drug, so the effect can be seen in 17~21 days after taking the drug.
For women with irregular menstruation, it is recommended to go to a regular hospital in time to improve ultrasound, sex hormones and other related examinations, to clarify the cause of the disease and then actively treated under the guidance of the doctor.