score8Gleason Score 8+ What does it mean to have Gleason Score ≥8 prostate cancer? (A Gleason Score of 8 or hher) Gleason score ≥8 prostate cancer means that you have hh-risk prostate cancer. This includes any of the following onSn up and get instant on access to your FICO® Score for free. No impact to your score. Checking your own credit won't lower your credit scores.