King Charles sent shockwaves around the nation in February when Buckingham Palace announced that he has been diagnosed with cancer.
In the following, His Majesty has been undergoing treatment, which he and his wife, Queen Camilla, have both said is going well, but the King has not shared the type of cancer he was diagnosed with.
With the King set to appear at the Trooping the Colour this weekend, we revisit everything we know, and everything the King has said, about his cancer treatment so far.
What is the King’s diagnosis?
The Palace's February statement read: "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."
How was his cancer diagnosed?
King Charles's cancer was diagnosed during his prostate procedure, with tests identifying cancer.
"Cancer diagnosis typically involves a combination of imaging and biopsy procedures," explains Professor Ramia Mokbel, a consultant dermatologist with a special interest in skin cancer and screening, and the founder of the London Skin and Mole Clinic at HCA Healthcare.
"Effective cancer screening methods include colonoscopy for colorectal cancer, lung scans for lung cancer, PSA blood tests and MRI for prostate cancer, and cervical cell sampling for cancer of the cervix along with mapping and biopsy for melanoma detection."
How is the King coping with his diagnosis?
His Majesty appears to be in good spirits, smiling following his first treatment as he and Queen Camilla left Clarence House, following visits from family members including Prince Harry and Princess Beatrice.
The King has been keeping busy during treatment. The Palace initially said that he would continue with his duties, albeit public-facing engagements were to bepaused, but since then, the King has attended select engagements, including a D-Day service.
READ: What King Charles' cancer diagnosis means for other senior royals
The palace's initial statement said of King Charles' plans: "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."
It continued: "The King is grateful to his medical team for their swift intervention, which was made possible thanks to his recent hospital procedure about his treatment and looks forward to returning to full public duty as soon as possible.
Queen Camilla gave an update on her husband's health several days after his treatment began, saying: "He’s doing extremely well under the circumstances, he’s very touched by all the letters and the messages the public have been sending from everywhere – that’s very cheering."
The Queen also joked in June that the King is"doing fine", but that he "won't slow down and won't do what he's told."
King Charles has spoke about his experience too, telling the public that he has lost his taste due to chemotherapy, but hasn't mentioned any other symptoms.
What does his cancer treatment look like?
The palace has not disclosed what kind of treatment the King will have but his comments on chemotherapy seemingly confirm his treatment plan. Professor Ramia explained of cancer treatment: "Each type of cancer requires a tailored multimodal treatment plan, developed and endorsed by a team of specialists from various disciplines.
"While some cancers respond well to surgery alone, many necessitate supplementary interventions such as radiation therapy, chemotherapy, immunotherapy, and hormonal therapy to ensure comprehensive management and improved outcomes."
How long will King Charles be in treatment for?
"Cancer treatment duration can vary, but typically lasts around six months for a combination of surgery, radiation therapy, and chemotherapy," explains Professor Ramia Mokbel. "However, hormone therapy for hormone-sensitive cancers such as breast and prostate cancer may be required for several years or even lifelong, depending on the cancer stage and individual response to treatment. Patients need to maintain a balanced lifestyle with regular exercise, proper nutrition, and adequate rest to minimise the impact of treatment on daily life."
Who is in charge of King Charles' treatment?
The King’s Serjeant Surgeon is Ranan Dasgupta, a urologist who specialises in a treatment for enlarged prostates. He is based at the London Clinic.
The head of the Medical Household is Michael Dixon. The former GP was appointed in 2022.