Prostate cancer, like all cancers, has the potential to spread or metastasize to other parts of the body.  If and when it does, it will typically affect the structures within the immediate area.  Most likely prostate cancer will spread to the bones or lymph nodes near the prostate.  Other structures of the body it could possibly spread to include the seminal vesicles, urinary bladder, liver, intestines, and rarely, the brain.