Men are recommended to register for male or urology department. After registering, you need to first explain your medical history to the doctor and answer his questions truthfully. For effective examination, actively cooperate with the doctor to do a comprehensive physical examination, especially the examination of reproductive organs, which probably includes hormone determination, semen analysis, genetic screening, microbial testing, and find out where the problem lies after doing various examinations for targeted treatment. The common microorganisms are gonococcus, chlamydia trachomatis, adenoplasma, papillomavirus, semen routine examination is the most important and basic clinical indicator to determine male fertility, the examination is 3-5 days do not have intercourse, then go to the examination, it is best to use masturbation method to obtain semen, recheck 1-2 times in two weeks, other related examinations, according to the doctor’s instructions.