Taking progesterone can induce menstruation. Progesterone is a natural progesterone, a female-specific hormone can promote menstruation, women’s menstrual irregularities in the exclusion of pregnancy can be under the guidance of the doctor to take progesterone to regulate menstruation, generally stop using 3-7 days to menstruation can come. Generally the first half of menstruation, under the action of estrogen the endometrium will grow to a certain thickness, and then the second half of ovulation in the luteinizing hormone under the action of the endometrium into the secretory phase, and then only to shed, retreat bleeding, so progesterone to promote menstruation is the prerequisite to the endometrium to have a certain thickness of the growth of the endometrium, the use of progesterone can be made to menstruation. If the endometrium is not affected by estrogen and does not come to menstruation even with progesterone, it is necessary to use estrogen plus progesterone treatment to be able to come to menstruation. It should be noted that during the use of progesterone, adverse reactions such as headache and dizziness may occur. In addition, there are certain contraindications to the use of progesterone, such as high blood pressure, breast cancer patients, is not suitable for the use of progesterone. Patients who are not menstruating are advised to go to regular hospitals for examination and then symptomatic treatment.