A contraceptive ring is a contraceptive device placed in the woman’s uterine cavity that has progestin or copper added to it. The IUD can reduce the rate of fertilization of the egg, so as to achieve the effect of contraception. But there are also certain hazards and side effects, as follows: 1, a small amount of bleeding: women on the contraceptive ring easy to stimulate the contraction of the uterus, may cause friction damage to the mucous membrane in the uterus, prone to bleeding phenomenon, a small amount of irregular vaginal bleeding without treatment, but if the amount of bleeding can increase the appropriate medication, serious cases can be removed from the ring; 2, inflammatory infection: women who have gynecological inflammation in the implantation of the birth control ring will aggravate the inflammation Infection, there are also a few episodic infections caused by sterilization or operation is not strict. Serious infection after the IUD should be removed in a timely manner, and then do the corresponding anti-inflammatory treatment; 3, leucorrhea abnormalities: more types of contraceptive rings, if the use of contraceptive rings with tail filaments, the uterus after the IUD may be due to the discomfort or rejection of the tail filaments resting on the cervix, causing an increase in cervical secretions, the phenomenon of leucorrhea abnormalities. This phenomenon belongs to the normal rejection reaction, will stop after getting used to, generally do not need to be treated; 4, with the ring pregnancy: contraceptive ring may be due to improperly placed or quality problems caused by the ring pregnancy, with the ring pregnancy should immediately terminate the pregnancy, another new ring.