Male semen quality examination mainly includes the following aspects, the most widely used and important is the routine semen examination, including semen volume, PH value, liquefaction time, sperm density, viability, malformation rate, white blood cell count and so on. The biochemical examination of seminal plasma includes seminal plasma fructose, acid phosphatase, alpha glucosidase, etc. Sperm function tests include sperm hypotonic swelling test, acrosome enzyme activity, etc. All the above indicators can reflect the quality of semen and the functional status of sperm, which can reflect the male reproductive function from different aspects.