Marriage examination, also known as premarital examination, refers to a simple evaluation of the bodies of both men and women to determine whether there are factors that affect fertility. The following aspects need to be checked for men during the marriage test: First, a general assessment of the overall appearance of the man, as well as the general condition of his body, including asking for a medical history, etc. Secondly, an ultrasound of the male urinary system and prostate system can be done, so that the reproductive system can be assessed in general. Third, blood should be drawn to test for some infectious, to determine whether or not they are suffering from infectious diseases. Fourth, if necessary, a routine semen examination can be performed to determine the quality of sperm. Of course, premarital examination is only some basic screening, if there are abnormalities, you should go to a specialist hospital or general hospital for further examination, so that you can clarify the cause and determine whether there are high-risk factors that affect pregnancy or marriage.