Six months after a cesarean section, you can consider an IUD, the medical term for which is the placement of an intrauterine device (IUD), which is a safe and effective form of contraception. It is also a widely used form of contraception in China and is also a reversible form of contraception. If the patient has reproductive requirements, the IUD can be removed, and after 2-3 normal menstrual periods and after the endometrium has recovered, conception can be considered again. The contraceptive principle of placing IUD: 1, the placement of IUD will cause aseptic inflammation in the uterine cavity, affecting the fertilization of the egg. 2, many of the current contraceptive rings are a kind of active contraceptive ring, which contains a certain amount of drugs, such as copper or a certain amount of progesterone. 3, the IUD is a kind of active contraceptive ring, which contains a certain amount of drugs, such as copper or a certain amount of progesterone. 4, the IUD is a kind of active contraceptive ring. In addition to the principle of contraceptive effect just mentioned, you can also achieve the effect of contraception through drugs.