Spermatozoa are produced from both testicular tissues of men. There are some convoluted tubule like tissues in the testicular tissue. These tubules are called seminiferous tubules. There are many cells in the lumen of these seminiferous tubules, mainly supporting cells, which mainly provide nutrition and regulation for the production of sperm. There are also spermatogonia, which gradually divide into spermatocytes, secondary spermatocytes, sperm cells Finally, a round sperm cell develops into a mature sperm like a tadpole with head, body and tail through allergy, which is the process of sperm production. Then enter the epididymis for storage and capacitation to form sperm with reproductive function. Finally, in the process of sexual life, at the time of orgasm, through the secretion of accessory glands, they are discharged together with sperm, which is semen.