Queen Camilla has spoken about the challenges of keeping her husband King Charles III's cancer diagnosis confidential, describing the time before the announcement as "quite difficult." She recalled a visit to a Maggie’s cancer treatment center just one week prior to the public disclosure of the King's illness.

In a conversation shared via Instagram with Dame Laura Lee, chief executive of UK cancer charity Maggie’s, Camilla shared her internal struggle. "I almost said something, but you know, felt that it wasn’t the time to say," Camilla stated. "I was just longing to let it out, but obviously I couldn’t."

Because she could not reveal the news at the time, Camilla admitted that she found herself "almost questioning" the patients she spoke with at the center to learn more about cancer, while trying not to "pry too deeply." She added that seeing the patients "who were suffering" reinforced the importance of cancer research and treatment.

Buckingham Palace confirmed in January 2024 that King Charles was being treated for benign prostate enlargement, clarifying that his cancer was detected during that procedure. The King's cancer diagnosis was publicly disclosed the following month.

An official statement from Buckingham Palace at the time said, "During The King’s recent hospital procedure for benign prostate enlargement, a separate issue of concern was noted. Subsequent diagnostic tests have identified a form of cancer." The statement continued, "His Majesty has today commenced a schedule of regular treatments, during which time he has been advised by doctors to postpone public-facing duties. Throughout this period, His Majesty will continue to undertake State business and official paperwork as usual."

The Palace also stated that the King had chosen to share his diagnosis "to prevent speculation and in the hope it may assist public understanding for all those around the world who are affected by cancer." The specific type of cancer and the details of his treatment have remained private. However, in December of the previous year, King Charles shared a positive update, stating that his "schedule of cancer treatment" would be reduced in the new year due to a positive response to intervention. Buckingham Palace noted that he has "responded exceptionally well to treatment."