Prostate cancer develops when the cells in the prostate gland grow more quickly than in a normal prostate, forming a malignant tumour. Most prostate cancers grow slower than other types of cancer.
Early (or localised) prostate cancer means cancer cells have grown, but they have not spread to other parts of the body, such as the bones and lymph nodes. This is called advanced prostate cancer.
Last Reviewed: 01 June 2011