For the items that need to be checked for men in marriage, the following items can be selected according to the specific situation of the individual: 1. physical examination by a specialist, such as a urologist or a reproductive medicine health doctor, mainly to understand whether there are pathologies in the reproductive organs that affect marriage and fertility. 2. routine blood, liver and kidney function tests to initially understand the physical condition of the patient. 3. examination of sex hormone levels. 4. color examination of the genitourinary system. 5. Screening for infectious diseases, such as hepatitis C, hepatitis B, syphilis, AIDS, etc. The examination of semen quality is mainly to assess the quality of semen and to prepare for eugenics after marriage.