Former President Joe Biden was diagnosed with stage 4 prostate cancer on May 16, 2025. The aggressive form of the disease, classified as Gleason score 9/Grade Group 5, had metastasized to the bone.

The diagnosis followed urinary symptoms and the discovery of a prostate nodule. Biden’s condition was described as hormone-sensitive, which supports effective management through treatments like hormone therapy, though it is not considered curable once metastatic.

In May–June 2025, Biden began hormone therapy. He spoke publicly at a Memorial Day event expressing optimism about his prognosis and stating he felt good. By September 2025, he underwent Mohs surgery for skin cancer lesions on his head. In October 2025, he completed radiation therapy as part of his prostate cancer treatment.

As of May 2026—approximately one year after diagnosis—Biden has remained active in public life, including speeches and endorsements. His aides describe his condition as manageable, with Jill Biden noting that he would live out his natural life with the disease.

The article also notes that Scott Adams, who announced a similar cancer diagnosis around the same time, declined rapidly and died several months later.