King Charles has taped a first-hand account concerning his battle with cancer, scheduled for transmission as part of this year's Stand Up To Cancer campaign, spearheaded by a leading cancer charity and a major network.
The royal household confirmed the King would discuss his "healing process" as a person living with the disease, in a recorded address on this Friday at 8pm UK time.
The address, filmed within a royal residence a fortnight ago, will stress the vital significance of preventative health checks to increase the likelihood more people detect the illness at an early stage.
This will be a uncommon insight on the medical condition of the King, who has been in a course of therapy since revealing his diagnosis in early last year. However, it is believed improbable the King will specify his particular diagnosis.
The Stand Up To Cancer event each year collects money for scientific studies and patient care and prompts people to get health assessments to improve the probability of an early diagnosis.
The King's candid approach about his condition, and living with cancer, has been designed to increase understanding and to encourage more people to get tested - and this will be escalated with this unusual royal involvement.
So far the King's key philosophy to his cancer has been to keep working, upholding a busy schedule despite his ongoing course of treatment, and he is understood not to have desired to be characterised by his illness.
This year has seen the Sovereign, embarking on several foreign visits, such as visits to Italy and Canada, and welcoming the biggest number of official guests to the UK for decades, which included the German president in recent days.
This Friday's Stand Up to Cancer programme on television, featuring presenters such as several TV personalities, will encourage people not to be frightened of getting health screenings.
Each presenter have been personally touched by cancer - McCall said recently she had received treatment for a tumour, while another presenter was treated for thyroid cancer over a decade ago. Presenter Hills has previously mentioned his late father, who had a diagnosis and then later another illness.
The broadcast will appeal to the approximate nine million people in the UK who Cancer Research UK state are not current with national health programmes, with an digital tool to let people determine if they are qualified for tests for breast, bowel and cervical cancer.
In an attempt to explain screenings and show the value of early diagnosis there will be a direct feed from treatment centres at two Cambridge hospitals in Cambridge.
"My aim is to remove the anxiety out of preventative tests and demonstrate all people that they are not on their own in this," stated one of the hosts.
Currently in the UK, there are several key NHS cancer screening programmes - for major health concerns - available to eligible individuals.
A recently launched scheme for lung health is also being phased in for people at potential risk of developing the disease, primarily aimed at people in a specific age bracket, who currently smoke or used to.
Individuals may enquire about specific tests, but there is not a universal scheme in place.
The Stand Up to Cancer initiative, which has generated £113m for many years, is financing dozens of medical projects involving 13,000 patients.
King Charles, in a address for guests at a gathering for related organisations in April, had spoken of acknowledging the "overwhelming and at times frightening experience" for cancer sufferers and their support networks.
But he stated his personal journey of coping with cancer had revealed that "periods of great challenge of disease can be illuminated by the kindness of others," as he thanked those who looked after those receiving treatment.
Royal representatives has not disclosed the nature of cancer the King has, or the medical care he has been given. The King's cancer was identified following he had received a medical treatment.
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