There is no way to check the condition of male infertility by oneself, and it is necessary to go to the hospital for examination, and the main examination methods include ultrasonography, semen test, hormone screening and chromosome examination. 1. Ultrasonography: It is mainly to check whether there is any abnormality in the development of the reproductive system, especially to observe the condition of testicles, seminal vesicles and vas deferens. 2. Semen test: It can check the liquefaction of semen, sperm content and sperm viability, and comprehensively determine the reasons affecting the pregnancy status. 3. Hormone test: mainly check whether there is any abnormality of androgen to further determine whether it is an endocrine abnormality that affects the reproductive system. 4. Chromosome examination: through the examination of male chromosome status, to further determine the reasons affecting the development of the reproductive system and semen status. Men with infertility need to consult a doctor for timely observation and standardized treatment after determining the specific cause.