What Is It?
Prostate cancer results from the uncontrolled growth of abnormal cells in the prostate gland. This gland produces part of the fluid in semen. It is located below the bladder and in front of the rectum, near the base of the penis.
Prostate cancer is common, but it is not always dangerous. This is because it usually grows very slowly. It affects older men; the average age at diagnosis is 70. And it's usually diagnosed before it causes any symptoms. Also, these men often have other illnesses which may be more important to treat than a cancer that doesn't cause symptoms.