The prostate is the largest accessory gland of the male reproductive system, a single organ that resides in the pelvic cavity and is shaped like an inverted chestnut with a tough texture. It can be divided into base, tip, front, back and both sides, with the broad upper part forming the base of the prostate and the tip down. The prostate gland is often small in size during early childhood, but it grows exponentially during adolescence, and is relatively stable between the ages of 20 and 50. The prostate gland is often small in size during adolescence, relatively stable between the ages of 20 – 50, and begins to increase in size after the age of 50. The prostate gland can be divided into five lobes, namely the front, middle and back lobes and the left and right lobes, which vary in size and have very different roles and meanings, of which the middle and both lobes are the main places where the physiological functions of the prostate gland are performed, and are also the main parts that cause prostate disease. The middle lobe tends to be hypertrophied in older people, jacking up the posterior mucosa of the urethra and forming a bladder drape, leading to difficulty in urination. The posterior lobe is located behind the ejaculatory duct and rarely becomes hypertrophic, and this lobe is felt on rectal palpation in time. The left and right lobes are larger in scope, and if hypertrophy occurs the section presses on the urethra from both sides and urinary retention occurs. The prostate gland can also be divided into the central zone, peripheral zone and shifted zone, which also has an important reference value for the diagnosis and treatment of the disease. The prostate gland has many tubular glandular vesicles consisting of and eventually converging into prostatic glandular ducts that open on both sides of the seminal mound of the urethral prostate to excrete prostatic fluid.