King Charles has continued treatment for cancer since Buckingham Palace announced his diagnosis in February 2024. The Palace has never publicly revealed the type or stage of cancer, but Charles has continued carrying out royal duties while his treatment has been gradually reduced.
A recent report has raised fresh concerns, claiming that the 77-year-old monarch remains in a fragile condition. The claims came from unnamed royal sources cited by The News International and RadarOnline, but they have not been independently confirmed by Buckingham Palace.
The reports come as the royal family faces continued tensions involving Prince Harry, Meghan Markle and Prince William. Harry and Meghan returned to the UK with their children in 2026, while Charles recently reiterated that they remain non-working royals. Reports about the family’s private relationships largely rely on unnamed sources and should therefore be treated cautiously.
Despite the new concerns, earlier updates from the Palace had been more encouraging, including a reduction in the frequency of Charles’ cancer treatment in late 2025. The latest reports suggest uncertainty remains around his health, but without an official medical update, the more serious claims about his condition cannot be independently confirmed.