In China, couples undergoing assisted reproduction must abide by the national family planning policy and have fertility targets, and IUI is no exception. So among the many assisted reproduction methods, who is more suitable to choose artificial insemination? First of all, if you want to choose artificial insemination, you need to be diagnosed by hysterosalpingography or laparoscopy: at least one unilateral open fallopian tube; normal uterine development or abnormalities but they do not affect the operation of artificial insemination and the conception of the fetus; and the follicles can be developed after natural cycle or ovulation promotion medication. If the above conditions are met, artificial insemination can be considered if the following problems are faced Male factors 1. Those who have difficulty in sexual intercourse or semen cannot enter the vagina after sexual intercourse: such as severe hypospadias, and various causes of impotence, severe premature ejaculation, non-ejaculation or retrograde ejaculation; 2. Semen abnormalities: if mild and moderate semen abnormalities can choose to inseminate the sperm through strict treatment in the laboratory; 3. In addition, there are some factors that can choose artificial insemination by donor sperm, the specific situation needs to be reproductive The specific situation requires a consultation with a specialist at the center. Female factors 1. cervical infertility: if the female partner has abnormal cervical mucus due to history of cervical surgery, which is not conducive to sperm penetration and survival; 2. ovulation disorders in which ovulation has been induced several times but no pregnancy has occurred; 3. mild or mild endometriosis infertility; 4. immune infertility; 5. unexplained infertility: if no abnormality is found in the infertility examination of both spouses after routine examination, they can also try this assisted reproductive technology. Try this assisted reproductive technology.