There are many types of intrauterine devices, and there are mostly two types commonly used at home and abroad: one type is the inert device, which is made of inert materials and does not release any active substance itself. The other type is the active IUD, which is a carrier with active substances such as copper, zinc and other metals, progesterone, hemostatic drugs and magnetic materials, which are released slowly to increase the contraceptive effect and reduce side effects. Due to the poor contraceptive effect of inert birth control devices, they are now gradually being phased out. In order to minimize the adverse effects of IUD placement for women of childbearing age after childbirth, miscarriage or emergency contraception, our department took the lead in introducing the new intrauterine device Ginny Soft and Ginny Zimmer. So far, more than 1,000 cases have been placed. “Ginny” is an improved active fixed IUD without stent, which was well received at the beginning of promotion because of its low dislodgement rate and low pregnancy rate with the device. However, due to certain drawbacks in the design, it is easy to have obvious side effects after placement. As the fourth and fifth generations of improved products, Ginny Soft and Ginny Zimmer have abandoned the shortcomings of the traditional Ginny tail wire, such as hardness and irritation, and greatly reduced adverse reactions such as prolonged periods, increased menstruation, back and abdominal pain, and contraceptive failure, and have become the birth control device with the least side effects, lowest shedding rate, and highest contraceptive success rate. According to the follow-up statistics of 6-12 months after the operation, the rate of dislodgement is <0.95%, the rate of pregnancy with device is ≤0.01%, the rate of pain is <0.09%, the rate of bleeding is <0.67%, and the bleeding/pain is <0.09%. There may be cases of spot bleeding and increased menstrual flow for 1-3 months after surgery, but the symptoms almost all disappear after adaptation or simple symptomatic treatment. In addition, the surgeons in our department have undergone systematic and comprehensive training, with excellent technology, skilled operation, sufficient experience and gentle technique, which can fundamentally avoid the problems caused by technology and complete the surgery without the patient's knowledge, with a satisfaction rate of 100%. Ginny Soft, to the beauty of the six imported high-purity copper sleeve and a 200 polypropylene surgical wire composed of the first and sixth copper sleeve fixed to prevent falling off. Each copper sleeve is 5 mm long and 212 mm in diameter, with a small knot at the tip of the wire, and is implanted 1 cm into the myometrium via a special placement device, where the copper sleeve is suspended in the uterine cavity and copper ions are continuously released to play a contraceptive role. The copper sleeve of Zimmer is concealed with indomethacin silicone rubber, which is released evenly and slowly by a special system. Their common features are: the abandonment of the traditional stent structure, which reduces irritation to the uterus; the possibility of changing the shape with the uterine morphology for a more comfortable feeling; the fixed placement, which reduces the chance of dislodgement; the small space occupied in the uterine cavity, which reduces rejection; the soft, slender and flexible tail filament, which has been improved several times, which is easy to remove and at the same time does not cause any irritation to the partner. Many women of childbearing age suffer from primary dysmenorrhea or adenomyosis, and the painful menstruation at the onset of menstruation can greatly affect their normal work and life. Because they are usually younger or have fertility requirements, and because of the nature of the disease itself, surgery is difficult to cure. For this group of patients, the placement of Ginni Zimmer is an excellent choice. The advantages it offers are quite obvious, as it provides significant relief from menstrual pain while acting as a contraceptive. In this regard, it is important to mention another intrauterine contraceptive system, the Mannorrhea, the levonorgestrel IUD system, the most advanced IUD "system". It works by slowly and steadily releasing low doses of levonorgestrel to thin the endometrium, thicken the cervical mucus and weaken the peristaltic movement of the fallopian tubes. In adenomyosis, the ectopic endometrial foci can be shrunken to achieve the purpose of treatment. Our department has placed dozens of cases mainly for patients with this disease, and the follow-up effect is more obvious. However, since some patients experience significant reduction in menstrual volume or even amenorrhea after use, as well as different degrees of menstrual changes including spotting vaginal bleeding, irregular bleeding and prolonged periods at the beginning, patients are prone to anxiety if they have insufficient knowledge about the treatment of this disease. At the same time, Mannitol is expensive and although it has some therapeutic effect on adenomyosis, it is still not an easy choice for most women. In conclusion, both the GenePro and GeneZimmer have unparalleled advantages over traditional IUDs and the Mannorrhea, and are suitable for most women of childbearing age. They are especially suitable for women who have repeated dislodgement or significantly increased bleeding from traditional IUDs; women who cannot use hormonal contraception due to illness; women who need immediate contraception after abortion; and women who have a large uterine flexion and feel irritated by the caudal filaments of other IUDs. The anti-prostaglandin effect of indomethacin reduces bleeding caused by copper ions and has a significant analgesic effect, especially for heavy menstruation or dysmenorrhea. They are best placed within 7 days of menstrual flow and 1 to 3 days after menstrual cleansing. They can also be placed 3 months after vaginal delivery, 6 months after cesarean section, immediately after artificial or medical abortion or after resumption of a normal menstrual period. Also, it can be used for emergency contraception, up to 120 hours after unprotected intercourse. In conclusion, as the most advanced intrauterine device in China, Genealogy and Genezyme have obvious advantages in protecting the fertility of women of childbearing age, preventing gynecological inflammation and reducing side effects, etc. The placement method is relatively easy and worthy of wide promotion and use.