Anxu IUD refers to Active Gamma IUD II, which is different from the general IUD in that Active Gamma IUD II is composed of 99.99% highly conductive copper wire and anti-inflammatory silicone, which can provide anti-inflammatory and analgesic effects. Active gamma IUD II is composed of high conductive copper wire and anti-inflammatory pain silicone, which contains 20mg~25mg of anti-inflammatory pain, which can reduce local inflammation and pain, reduce bleeding, and relieve gynecological inflammation such as excessive menstruation and dripping blood. In addition, copper ions can kill sperm and can be more effective contraception. Ordinary common birth control ring is through the constant action of the birth control ring scraping the uterine wall, resulting in aseptic inflammation of the uterus, thus affecting the normal implantation of the embryo, to achieve the purpose of contraception. There are many types of contraceptive rings, due to the different physical conditions of each person, the suitable contraceptive ring is not the same, you should go to the hospital for a comprehensive judgment, under the guidance of the doctor to choose correctly.