Former President Joe Biden is experiencing significant pain due to the spread of his prostate cancer. This information was shared by his son, Hunter Biden, in an interview with the BBC. Details about the former president's condition are limited, but it is known that the cancer has spread and is causing him serious pain.

For more information, readers can refer to the original report from the BBC as shared by Hunter Biden. Further details about the former president's health and condition can be found through news sources, including the BBC interview where Hunter Biden discussed his father's prostate cancer.