Prostate cancer is the most often diagnosed cancer in Canadian men, aside from skin cancers. It ranks third as a cause of cancer death in Canadian men aged 65 and over. As an important part of the male reproductive system, the walnut-shaped prostate gland produces liquid that moves sperm. It is located between the rectum and the pubic bone, beneath the bladder. When the condition is found early, and if it is located only in the prostate gland, treatment of prostate cancer can be more successful. If the cancer spreads to other areas of the body, treatment may become more difficult.