Royal insider explains why King Charles decided not to reveal the type of cancer he is battling

A Palace source told the Times that the King’s decision not to reveal the type of cancer was a conscious choice to be able to reach out to the widest number of people who are experiencing the disease, rather than narrow the focus onto a particular form of cancer.

Despite not confirming the exact illness, the Palace did confirm it was not prostate cancer.

The monarch started his treatment after his diagnosis and, despite taking a short break in October whilst on his royal tour of the South Pacific, continues to receive treatment.

His treatment “has been moving in a positive direction” and is set to continue next year, Palace sources told GB News.

Insiders from the Palace said: "His treatment has been moving in a positive direction and as a managed condition the treatment cycle will continue into next year."

The source added that there is a sense of optimism, which can be seen in the King's desire to keep up a busy schedule of public engagements, including during the festive period.

On December 5, Buckingham Palace revealed: "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.

"His Majesty has today commenced a schedule of regular treatments, during which time he has been advised by doctors to postpone public-facing duties."

The statement continued: “Throughout this period, His Majesty will continue to undertake State business and official paperwork as usual.

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"The King is grateful to his medical team for their swift intervention, which was made possible thanks to his recent hospital procedure.

"He remains wholly positive about his treatment and looks forward to returning to full public duty as soon as possible.

"His Majesty has 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 King is set to spend Christmas at the Sandringham Estate in Norfolk with several senior members of the Royal Family.

He and Queen Camilla will lead their family on the traditional short walk from Sandringham House to St Mary Magdalene Church on Christmas day.