The prostate is a very small organ that doesn’t occupy a significant place in the body, but its susceptibility to disease has forced people to look at it in a different light. So what kind of organ is the prostate? What is its function? Why is it susceptible to disease? The prostate is an accessory gland of the male reproductive system, located below the bladder, encircling the urethra, the shape and size of the chestnut, about 4cm wide, about 2.5cm thick, about 3cm high. prostate tissue is mainly some of the follicles and smooth muscle, follicle secretion of the liquid called prostatic fluid, involved in the composition of semen, the sperm activity has a certain impact. The smooth muscle has a contraction function, which helps the ejaculation of semen when there is an orgasm during sexual intercourse. Therefore, when the prostate gland is diseased, it usually affects the reproductive and sexual functions. More because the urethra is passed from the prostate inside, the prostate if inflammation, enlargement and hyperplasia, will affect the urinary function, frequent urination, urinary urgency, urinary pain, urinary difficulties and other symptoms. The prostate is susceptible to three diseases – prostatitis, prostate hyperplasia and prostate cancer. Prostatitis is a very common male disease that occurs in young adults, so it can be said that men have suffered from prostatitis in their lives or had. Why is it so common? This has to do with the anatomy of the prostate. We know that the urethra passes through the inside of the prostate, and the glandular ducts of the prostate open to the urethra, so microorganisms in the urethra can easily enter the prostate through the glandular ducts and cause inflammation. In addition, the prostate gland is easy to congestion, sexual excitement when the prostate gland will be congested, if sexual excitement can not be relieved, the prostate gland congestion will not subside, and over time will be inflamed. Prostatic hyperplasia is a kind of disease that older men are prone to suffer from, and it is related to the imbalance of sex hormone balance, with age, the incidence rate increases, the incidence rate is about 50% at the age of 50 years old, 60 years old when the incidence rate is about 60%, and 70 years old when the incidence rate is about 70%. Prostate cancer is also a common disease in elderly men, the incidence rate is quite high in Europe and America, second only to lung cancer in the second place of cancer incidence rate, the incidence rate in our country is a little lower, but the incidence rate has a tendency to increase.