Doctors aren't certain what causes stage 4 prostate cancer.

Stage 4 prostate cancer occurs when a prostate cancer grows large enough to involve nearby organs, such as the bladder, or when cancer cells break away from the prostate and spread to other areas of the body.

Prostate cancer cells that spread beyond the prostate most often travel to the:

  • Lymph nodes
  • Bones
  • Liver
May 10, 2014