There is a large misconception among patients about the short-acting pill, which can actually solve many medical problems for gynecologists. Also, current birth control pills have very few side effects and there is no need to consider them unavailable. Main diseases treated: Uterine bleeding, whether menopausal or adolescent uterine bleeding, can be treated with the pill, which usually stops bleeding quickly and also prevents and treats endometrial cancer. Residuals after medical or abortion: Can be treated with contraceptive pills, usually taken for 2-3 cycles, which can avoid curettage. Regulation of menstruation: Some patients with irregular menstruation, amenorrhea, etc. can use the pill to regulate menstruation Excessive menstruation can also be used to reduce menstruation. There is currently a contraceptive pill containing the ring Mannorrhea, which can be placed for five years after the slow release of the pill to act on the uterus, without taking the pill, and can also treat excessive menstruation, dysmenorrhea, etc. One point to emphasize is that the choice of the type of contraceptive pill varies from disease to disease, usage to usage, and must be chosen by the doctor on how to take the pill.