Progesterone is not effective for all endometrial polyps, many patients oral ineffective; even if there is an effect, oral how long to disappear in the clinical statistics are not clear. The occurrence of endometrial polyps and estrogen levels have a certain relationship, and progesterone belongs to the progesterone, progesterone can resist estrogen-induced endometrial proliferation, theoretically, endometrial polyps may help, but in practice the effect is limited, and not all people take the polyp can disappear. Endometrial polyps of small size, no clinical symptoms can try progesterone treatment, after stopping the drug, the endometrium will be completely shed, small polyps may be eliminated with the exfoliated endometrium, but how long to disappear after oral intake of clinically there is no accurate statistical data, it may be 1~2 months or more time. If you take progesterone to treat endometrial polyps, you should review the ultrasound in time after the menstrual period is cleared, and if the polyps are not eliminated after 2-3 cycles of oral intake, it is not recommended to continue using the drug, and you should take hysteroscopic surgery, which has a more accurate effect.