On May 18, 2025, it was announced that former President Joe Biden had been diagnosed with an aggressive form of prostate cancer . His diagnosis came after he was checked out by his physician because of worsening urinary symptoms and a prostate nodule (here are some other prostate cancer warning signs you shouldn't ignore ). The statement revealed that his cancer was "characterized by a Gleason score of 9 (Grade Group 5)." It was further noted that the cancer appears to be hormone-sensitive, which means there are treatments that can manage it (via CNN ).

Once news about Biden's diagnosis broke, many were curious to learn just what these numbers mean for the former president's prognosis, especially after President Donald Trump made an inaccurate statement that Biden has "Stage 9" can

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