Infertility is the absence of pregnancy within one year of unprotected normal intercourse. Delayed childbearing, environmental pollution, unhealthy lifestyles, and lack of reproductive health protection have led to an increase in infertility rates. The World Health Organization (WHO) predicts that infertility will be listed as one of the three major human diseases in the 21st century, second only to tumors and cardiovascular and cerebrovascular diseases. The proportion of infertility in women of childbearing age in my country has risen from 2.5%-3% 20 years ago to about 16%. Clinical data shows that there are more than 50 million infertility patients in China. 1 couple is troubled by infertility on average every 8 couples, and the age of onset is decreasing.