Sperm testing can be done at the Reproductive Center, Urology or Men’s Department. The sperm test requires 2-7 days of abstinence for more accurate examination. The first examination can be done only for routine semen examination. Routine semen examination items mainly include the liquefaction time of semen, semen PH value, semen volume, sperm concentration, and sperm vitality. Then, according to the results of the routine semen examination, the next examination items will be decided. Especially if there is severe oligospermia, weak spermatozoa, deformed spermatozoa or even azoospermia, the next step is to do a comprehensive assessment of fertility such as sex hormone chromosome, Y chromosome microdeletion and genetic examination, and urogenital system ultrasound.