3,000+ views - happy to see we are meeting a need. Jim Blurb: Gleason score in advanced prostate cancer Gleason score tells how aggressive a prostate cancer is. It can affect the treatment - surgery, radiation or hormone therapy - that a doctor recommends. Jim (of JimJimJimJim.com) is not a doctor, but a man with a high Gleason score. Jim uses photos of real prostate cancer biopsy samples to give his understanding of Gleason score.