In contemporary society, there is an increasing trend of infertility patients. In the clinic, we often come across some patients who frequently change hospitals, and after years of treatment, the cause of the problem has not been found out, and what is more, after a year and a half of treatment for the woman, it is only clear that there is a problem with the man. This is a waste of time, labor and money. In order to find the best way to diagnose infertility, the first thing to do is to understand the main factors of infertility: male: low sperm count or no sperm; female: ovulation dysfunction, fallopian tube failure, immune factors and so on. Understanding of these factors, then the best way to consult the doctor is: 1, primary infertility (never pregnant), first of all, the man should be consulted to check the semen routine, to see the number of sperm, mobility, viability and morphology, and so on. If the man’s semen is normal, the woman needs to check the ovulation function and whether the fallopian tube is clear in turn. At the same time, both men and women need to check the anti-sperm antibodies, to see whether there are immune factors leading to infertility, which is only in recent years has been emphasized by people caused by a factor of infertility. 2, secondary infertility, once pregnant, but the abortion or spontaneous abortion, first of all should be in the menstrual period after clean the 3rd to 5th day without intercourse, tubal iodine oil imaging test, see whether the fallopian tube is smooth. If tubal patency is good, ultrasound is needed to monitor the follicles to see if ovulation is functioning normally. Some secondary infertility, due to abortion and artificial interference with the natural process of pregnancy, easily lead to ovulation dysfunction. There are also some reasons that the male partner is engaged in computer and other radioactive substances with a history of exposure, resulting in low sperm count, poor quality, and so on.