The main side effect of the Gini Ring is irregular vaginal bleeding, which may occur mainly in the form of increased menstrual flow, prolonged periods or a small amount of spotting bleeding. The symptoms are more obvious 3-6 months after the IUD is placed, and most patients will gradually recover after 3-6 months. A small number of patients can experience increased leucorrhea, accompanied by lower abdominal distension, which means back pain and abdominal pain, and can even cause infection. Since the Gini Ring has a tail filament, if you do not pay attention to hygiene and cause vaginal inflammation, there is a possibility that the tail filament may lead to an upstream infection, which may cause endometritis or even pelvic inflammatory disease. The main effect of the Gini Ring is to change the endometrium, which is not conducive to the fertilization of the egg, and to thicken the cervical mucus, which is not conducive to the penetration of sperm, with a contraceptive efficiency of more than 95%.