Polycystic ovary syndrome, with which menorrhagia is caused. How can I get a period in this case? First of all, the first step is to go to the hospital to have an ultrasound to see how thick the endometrium is. If the endometrium is particularly thin, you must use a little bit of regulating medicine, such as progesterone and progesterone to make her menstruate first. If the ultrasound indicates that the thickness of the endometrium is greater than 5, then you can use some progesterone, progesterone alone, 100mg per day for 10 days, and you will have your period within 3 to 7 days after you stop taking it. After you have your period, you must go for a blood test to determine whether it is polycystic or not. If it is indeed polycystic, then you should start to take TAIE 35 on the 5th day of your menstrual cycle and take it for 21 days continuously, after stopping the drug, you will have your period. Therefore, if you use progesterone to make her menstruate, and then take Daing 35, she will get her period every month.