Joe Biden's cancer is "very painful," his son reveals.

Hunter Biden has revealed in a BBC interview that the prostate cancer diagnosed in his father, former United States President Joe Biden, is both "very painful" and "very debilitating." The former president, who is 83 years old, remains central to his family, according to his son's public statements.

The disclosure brings new details regarding the health condition of the former U.S. leader, highlighting the physical toll of the illness as described by his immediate family.