Drinking progesterone for menstrual drenching is effective, but not during the menstrual period, but on the 15th day of menstruation. If the ultrasound examination excludes the uterus and pelvis organic lesions, it is suspected that the luteal atrophy is incomplete, so you can increase the progesterone on the 15th day of the menstrual cycle, which can make the luteum atrophy earlier when the menstruation comes, and improve the patient’s clinical symptoms, which is for the women who do not have organic lesions in the body. If the dribbling of menstruation is caused by endometrial polyps, uterine fibroids or adenomyosis, drinking progesterone in this case has no effect.