I. What is male infertility? WHO recommends that couples who have lived together for more than one year after marriage, have a normal sex life, and have not taken any contraceptive measures, and the female partner is infertile due to the male partner, is called male infertility. Second, in order to further clarify the cause of male infertility, necessary tests are needed. The following table tells you what tests need to be done: Male infertility routine checklist Third, check the best state of the examination for the last 2-3 months, no smoking, no alcohol, no overexertion, no cold and fever, no major diseases, and after sperm discharge (including intercourse, seminal emission, masturbation, etc.) day 3-5, should not exceed 7 days, to The semen specimen should be kept in the professional sperm collection room of the reproductive department of a regular hospital to avoid spilling semen and to ensure the integrity of the specimen.