Only a few cells have turned cancerous and so cancer can only be detected via blood tests or a biopsy. The cancer is not revealed by a rectal examination.
The cancer is a little bigger and makes the prostate gland harder. A doctor can now detect the cancer during a rectal examination.
Localized prostate cancer (stages T3 or T4): the tumor spreads into surrounding organs
The prostate cancer has spread to the shell of the prostate gland.
The prostate cancer has spread outside the prostate and possibly to other organs.