After taking Deferiprone tablets, the uterine lining will be transformed to the luteal phase. Deferiprone is a progestin, which is usually used in the treatment of abnormal uterine bleeding in the second half of the menstrual cycle, used to inhibit the endometrial hyperplasia due to the prolonged estrogen stimulation. It can also be used in the treatment of endometrial polyps after surgery, so that the endometrium to the luteal phase, that is, the endometrium into the secretory phase, to inhibit the growth of the endometrium, usually about 10 days of medication to stop the drug, after the withdrawal of bleeding will occur. If it is used in early pregnancy, Dydrogesterone tablets have the effect of increasing the permeability of the endometrium to make the fertilized egg implantation and development.