Recently, we often encountered some young people requesting semen examination in clinics because their wives had failed to get pregnant six months after marriage, and the family was thus nervous and asked the newlyweds to come to the hospital for relevant reproductive examinations. The diagnosis of infertility requires that the woman has not been pregnant for more than one year after marriage after cohabitation and normal sexual life without contraception. It is only when this criterion is met that the problem of possible fertility disorders is considered. It is important to note that there are four key words here: cohabitation, normal sexual life, no contraception, and 1 year. That is to say, in the case of normal sexual life, the couple did not take any contraceptive measures, cohabitation for 12 months the woman did not get pregnant, then consider going to the hospital for semen examination, semen quality of the normal standard values in this case can be used as a diagnostic tool. The reason for this is that a significant number of men whose semen quality is not in the normal range can still be fertile, so the industry requirement of one year of cohabitation is justified. If a semen test is performed too early, and the couple has not been cohabiting for one year at the time of the test, even if the test results are not normal semen quality cannot be diagnosed as male infertility, and the results of the substandard semen test will instead create a mental burden on yourself, which is not good for your health. Doctors cannot prescribe medication without establishing a diagnosis. How really want to carry out this aspect of the examination, we must recognize this point, time does not meet the requirements of the semen examination appears abnormal examination, can only prompt themselves to develop good habits, do not wear tight pants, do not soak in the hot spring bath, do not drink harmful drinks, etc., only meet the requirements of the examination of the time: cohabitation for 12 months without success before going to carry out the relevant examination is the right decision.