The male prostate gland is involved in the dual role of male urination and reproduction, but also helps to maintain the urethra tide, maintain the urethra clean and other roles. 1, the prostate gland is an important part of the urethra, to maintain the integrity of the urethra, so that the patient can be normal urination. The front of the prostate is connected to the urethra the back is connected to the bladder, belonging to the structure at the hub. The urethral sphincter at the tip of the prostate closes the urethra and prevents urinary incontinence. So when there is prostate disease, patients will have abnormal urination changes. 2, ejaculatory duct opening is located in the prostate, if the prostate disease, can lead to patients with ejaculation abnormalities, but also to maintain the normal sexual function of men. When prostate disease occurs, it can cause reverse ejaculation or ejaculatory duct blockage, the patient can have an orgasm, but no semen ejaculation or semen with the urine and discharge. 3, prostate gland secretion of the prostate gland is an important component of semen, if the disease can lead to abnormal semen quality. Prostate fluid can maintain the urethra moist, wet, and maintain the role of urethra clean.