Share Tweet Pin Email By Molly Claire Goddard 1:29pm PST, Dec 15, 2025 _ King Charles III broke from tradition to make a public announcement about his cancer battle. Keep reading to learn why the move was unexpected...MORE: Follow Wonderwall on MSN for more top news _ During Channel 4's Stand Up To Cancer special, King Charles III announced his chemotherapy treatment will "be reduced" in the coming year after being diagnosed with cancer two years ago. "Early diagnosis quite simply saves lives," he said in the video.