The premarital male examination items mainly include the following aspects: First, the examination of semen routine, including the presence of sperm, the concentration of sperm, the total number of sperm, the vitality of sperm and the abnormal sperm. Second, the examination of sexually transmitted diseases, mainly including the five hepatitis B, syphilis, AIDS, chlamydia, mycoplasma, gonococcus and other related tests. Third, the eugenics test, for those who have pets or frequent contact with pets, it is recommended to check the eugenics test to exclude viral infection and toxoplasma infection. Fourth, chromosome examination to prevent or exclude miscarriage of the spouse.