Let’s begin with a description of the components of the male genitourinary system. Part of the waste and toxic substances produced by the body are excreted through the kidneys as urine. Urine produced by the kidneys reaches the bladder for storage through a pipe about 30cm long, and after a certain amount is reached, the brain receives a signal and sends a signal to urinate, at which point the gate controlling the pipe opens and the bladder pushes the urine into the distal pipe and out of the body. The male reproductive system originates from the testes, from which sperm are produced and which are discharged from the body through the vas deferens ducts into the distal urinary ducts. The prostate gland is at the point where the urinary and vas deferens ducts meet, above it is connected to the bladder, below it is close to the perineum across the muscles, in front it is blocked by the pubic bone, and in the back it is adjacent to the rectum. The urinary duct connecting to the bladder passes through the middle of the prostate. This is like a river passing through a mountain. What does the prostate gland look like? It is shaped like a chestnut, convex at the front and slightly flat at the back, with a groove-like depression in the center of the back. The base is near the bladder and is wide, about 3.5 cm. The distal end narrows gradually and is called the tip. Normally, the upper and lower diameters and the anterior and posterior diameters are about 2.5 cm. The prostate can be divided into the right and left lateral lobes and the middle lobe which is located at the back. In terms of specific internal structures, it can be divided into the central, migratory and peripheral zones. Disease in these different zones varies considerably. Prostate secretions are a major component of semen, serving to nourish and increase sperm motility and participating in semen liquefaction. Therefore prostate disease may affect fertility.