The role and function of the prostate gland is to secrete prostate fluid, regulate endocrine secretion, and participate in urination, urine control and ejaculation. 1. Secretion of prostate fluid: the prostate is one of the male exocrine glands that can secrete milky white, weakly alkaline prostate fluid, which contains acid phosphatase, fibrinolytic enzymes and other substances, and is also the main component of semen, which plays an important role in the normal activity and survival of spermatozoa. 2. Endocrine regulation: Because the prostate is rich in 5α-reductase, it can convert testosterone into dihydrotestosterone with stronger physiological activity, and it has certain endocrine regulation function. 3. Involved in urination and urinary control: because the prostate gland surrounds the outside of the urethra and is affixed to the top of the bladder, and the annular smooth muscle fibers of the prostate gland are involved in the composition of the urethral sphincter, therefore, it can assist in urination and urinary control. 4. Ejaculation: because the ejaculatory duct is passed from the prostate tissue, so in the time of ejaculation, the prostate smooth muscle contraction of the ejaculatory duct will cause extrusion, and then assist the discharge of semen. Men in daily life need to pay attention to strengthen the protection of private parts, but also to keep the local dry, clean. If local discomfort occurs, you need to go to the hospital in time.