After giving birth, it is important to use condoms as much as possible to prevent pregnancy. Condoms are the most successful, safer and less damaging form of contraception available. There are some women who are allergic to various condoms, so there is no way to use condoms. The IUD can be inserted in the uterine cavity, but only after the uterus has recovered for three months or six months after the birth, under normal circumstances. Avoid the situation that the uterine cavity is too large because the uterus has not fully recovered to its normal form, which can cause the IUD to be dislodged in the first place, and there is also a chance of abnormal bleeding occurring. Avoid also the perforation of the uterus due to the IUD, so as much as possible, choose according to your own situation.