The simple answer is that the prostate is a male-only gland about the size of a walnut located behind the bladder. The prostate gland's primary role is to provide a portion of the fluid needed for ejaculation.
Cancer is only one of several diseases of the prostate.
The prostate changes and grows throughout a man's life. Approximately 8 out of every 10 men will develop BPH by the age of 80. Treatment is available from your spouse's physician. Another common prostate-related disease is prostatitis, which may develop in men of any age. Men experiencing these symptoms, which may reflect possible problems with the prostate, should seek medical advice from their physician or urologist.