King Charles has delivered one of his most open and personal messages since revealing his cancer diagnosis earlier this year. The monarch appeared in a special televised broadcast for Stand Up To Cancer, which aired on Channel 4 on Friday, December 12 at 8pm. The message was recorded at Clarence House two weeks earlier and marked a significant moment, offering both reassurance about his health and a heartfelt appeal to the public.
Speaking directly to viewers, the king reflected on the emotional impact of receiving a cancer diagnosis. He described how overwhelming such news can feel, while also stressing the crucial importance of early detection. Drawing from his own experience, he explained that timely diagnosis can completely change the course of treatment, giving medical teams valuable time and patients something just as important, hope.
He also spoke warmly about the people who have supported him throughout his treatment. Doctors, nurses, researchers and volunteers were all praised for forming what he described as a “community of care” that surrounds every cancer patient. However, the king admitted he had been deeply troubled to learn that millions of people across the country are not up to date with routine cancer screenings, meaning countless opportunities for early diagnosis are being missed.
A hopeful milestone in his treatment
In one of the most significant moments of the broadcast, King Charles revealed encouraging news about his own condition. He shared that thanks to early diagnosis, effective treatment and following medical advice, his cancer treatment schedule is expected to be reduced in the new year. He described this development as a personal blessing and a powerful example of how far cancer care has advanced in recent years.
The monarch said that early diagnosis has allowed him to continue leading a full and active life while undergoing treatment. He expressed hope that sharing this milestone might bring encouragement to others, particularly given that around half of the population will face a cancer diagnosis at some point in their lives.
During the message, the king also encouraged viewers to make use of a new national online Screening Checker. He explained that the tool helps people understand what screenings are available to them, answers common questions and guides them toward taking that first step. As the festive season approaches, he urged people to reflect and make a personal commitment to early cancer checks, reminding viewers that their own life or the life of someone they love could depend on it.
Palace response and ongoing commitment

Featuring: King Charles III
Where: London, United Kingdom
When: 10 Dec 2025
Credit: Cover Images
Following the broadcast, Buckingham Palace released a statement acknowledging the overwhelming response to the king’s message. A spokesperson said His Majesty was deeply moved by the positive reaction from both the public and those working in cancer care. The palace added that the king was particularly pleased that his words had helped highlight the importance and benefits of screening programmes.
The statement reiterated that King Charles has long believed that if sharing elements of his personal health journey could lead to public good, then doing so was both his pleasure and his duty. His thoughts, the palace said, remain firmly with everyone affected by cancer and those who care for them.
While the king has not disclosed the specific type of cancer he is being treated for, aides have previously explained that he chose transparency to reduce fear and stigma around medical checks. Despite undergoing regular treatment, King Charles has continued to carry out royal duties whenever possible, maintaining a busy schedule throughout the year.
His appearance formed part of Stand Up To Cancer’s flagship fundraising campaign, which aims to raise vital funds, support research and encourage people to seek early diagnosis.