Former US president Joe Biden’s cancer has spread further, his son Hunter Biden said, describing the disease as painful and debilitating. Former US president Joe Biden’s cancer has spread further despite treatment, with his son Hunter Biden revealing that the disease has metastasized into his bones and beyond. Hunter Biden shared the update during a recent interview with the BBC, describing his father’s condition as “very painful” and “very debilitating”. Hunter Biden became emotional at times while speaking about his father’s health, saying it was difficult to watch him deal with the illness. “It’s really, really hard, and it’s really sad to watch,” he said.