Males can develop maturity and fertility at a minimum of fourteen to about eighteen years of age. Semen in human males consists of spermatozoa and seminal plasma, with spermatozoa being produced by the testes and seminal plasma being secreted by the prostate, seminal vesicle and urethral bulbourethral glands. Sperm production is after the development of the sexual organs, usually around the age of fourteen to eighteen years old, the average normal adult male will produce about 10 million sperm a day, each sperm maturation is a generation cycle. To strengthen physical exercise, enhance their resistance, pay attention to rest, ensure sleep, eat more fruits, vegetables, improve their ability to resist disease. Men should avoid sitting and standing for a long time in their daily life. Standing for a long time will easily make the venous blood return to the testicles poorly, and stagnation in the blood vessels can cause obstruction of the spermatic vein in the scrotum. If necessary, it is recommended to go to the hospital to test the sperm count and quality.