In vitro fertilization, also known as IVF, has a 30%-40% chance of pregnancy, mainly for women with abnormal ovulation, blocked fallopian tubes or deformed eggs, and men with low sperm count, poor quality, deformities, chromosomal abnormalities, etc. The combination of high quality eggs and sperm can be carried out in vitro, and then transferred to the uterine cavity for embryo implantation and growth. The embryo can then be transferred to the uterine cavity for embryo implantation and growth, thus improving the quality of fetal survival. In vitro fertilization is also a good way to prevent fetal neural tube abnormalities by giving small doses of folic acid. It is also necessary to avoid the effects of tobacco, alcohol, bacteria, drugs and viruses, and to increase nutrition and strengthen the body’s resistance and immunity in order to improve the success rate of embryo implantation.