The Brief Former President Joe Biden was diagnosed with prostate cancer Friday, just five months after leaving office. Former President Joe Biden has been diagnosed with prostate cancer, just five months after leaving office. Doctors found a prostate nodule and he was diagnosed with prostate cancer Friday. "Doug and I are saddened to learn of President Biden’s prostate cancer diagnosis," former Vice President Kamala Harris posted on social media. (Photo by Kevin Dietsch/Getty Images)When prostate cancer spreads to other parts of the body, it often spreads to the bones.