The ring that suits you best is the best, safest and has no side effects. The IUD mainly affects the fertilized egg’s implantation through the local tissue’s reaction to the foreign substance, and does not affect the hormone level of the female organism and the reproductive function in the future, which is safe, effective and convenient, and is the most commonly used contraceptive method at present. At present, the IUDs commonly used in the market are IUD, Y ring, T ring and Gini ring. The choice of IUD should be based on the size of the uterine cavity of the woman, the number of years of contraceptive use, etc. If there is no discomfort such as back pain or irregular vaginal bleeding after the IUD is inserted, then it will be the most suitable IUD for you. It is recommended to go to the hospital for 3~7 days after menstruation to have the IUD analyzed by a professional doctor and choose the most suitable IUD, so as to avoid the discomfort caused by the IUD to the body.