Prostate cancer

Prostate cancer happens when cells in the prostate gland grow abnormally and out of control. (The prostate is part of the male reproductive system. It is a small organ below the bladder that makes fluid for semen.)

Prostate cancer is usually slow-growing, taking years to grow large enough to cause any problems. But in some cases, the cancer can grow more quickly and spread to other parts of the body.

The Health Encyclopedia contains general health information. Not all treatments or services described are covered benefits for Kaiser Permanente members or offered as services by Kaiser Permanente. For a list of covered benefits, please refer to your Evidence of Coverage or Summary Plan Description. For recommended treatments, please consult with your health care provider.