The drug ring is mainly an intrauterine device placed for the treatment of certain gynecological diseases, which is relatively economical and cost-effective for both contraception and treatment of gynecological diseases, but there are often side effects: 1. irregular vaginal bleeding can occur, causing irregular menstruation and long-time bleeding causing upstream infection of inflammation; 2. it can also cause a decrease in menstrual flow or even amenorrhea, which can cause breast swelling and pain; 3. some Women may gain weight after placing the drug ring; 4. If the uterus is relatively large, there may also be the possibility of detachment after placing the right ring, so it should be reviewed regularly. The side effects should be noted with the placement of the medication ring, which can be treated symptomatically, such as vaginal bleeding can be given oral medication to stop bleeding, and in general, attention should be paid to avoid strenuous exercise and regular review of the ring position to prevent the loss of the birth control ring.