
King Charles III was briefly hospitalized in March 2025 due to adverse reactions to his cancer treatment. The 76-year-old monarch experienced temporary side effects from his ongoing treatment and spent a short period of time in a London hospital. The King's cancer diagnosis was first announced in February 2024, and he has since been open about his health, sharing updates and continuing his royal duties. Following his brief hospitalization, King Charles quickly returned to his duties, including a visit to Canada with Queen Camilla.
| Characteristics | Values |
|---|---|
| Date of hospitalisation | 27 March 2025 |
| Reason for hospitalisation | Temporary side effects from cancer treatment |
| Hospital | The London Clinic |
| Length of stay | Brief, a few hours |
| Age | 76 |
| Current health status | Positive recovery |
| Work | Continuing royal duties |
| Future plans | State visit to Italy in April 2025 |
| Previous hospitalisations | 2024, 2016 |
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What You'll Learn

King Charles' cancer treatment
King Charles III's cancer treatment has been ongoing since his diagnosis in February 2024. The 76-year-old king has been open about his health issues, sharing the news of his diagnosis to prevent speculation and to assist public understanding for all those affected by cancer worldwide. While the palace has not disclosed further details about his diagnosis or treatment program, sources have indicated that his recovery is trending in a positive direction.
On March 27, 2025, King Charles was hospitalized at The London Clinic due to temporary side effects from his cancer treatment. He experienced an adverse reaction to his treatment, which required a short period of observation in the hospital. The King returned to Clarence House after his hospital stay and continued to work, making calls and preparing for state visits. He resumed his royal duties soon after, embarking on a two-day trip to Canada with Queen Camilla, where he opened the Canadian parliament in Ottawa.
Despite his ongoing treatment, King Charles has maintained a busy schedule of royal duties and engagements. He has continued to meet with world leaders, including Prime Minister Rishi Sunak, and has attended various public events, such as the Royal Ascot. The King has also led the Royal Family at Trooping the Colour and other ceremonial occasions.
While King Charles's cancer treatment is said to be rigorous, reports suggest that his condition is incurable. Despite this, the King remains wholly positive about his treatment and is expected to return to full public duty. The palace has stated that the King's treatment program will continue, but doctors are pleased with his progress, allowing him to resume public-facing duties.
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Temporary side effects
King Charles III experienced temporary side effects from his cancer treatment, which required a short period of observation in the hospital. While the Palace has not disclosed the specific details of his condition or treatment, sources indicate that his recovery is progressing positively.
- Physical decline: Hospitalization can lead to reduced physical strength and stamina. Prolonged bed rest can result in pressure sores, commonly known as bedsores, which can develop as early as two hours into a hospital stay, typically on the lower back, tailbone, heels, elbows, and hips.
- Changes in bowel movements: Certain medications, such as blood pressure medications and antidepressants, can impact regular bowel movements and may lead to constipation. A high-fiber diet, adequate fluid intake, and exercise can help alleviate this issue.
- Blood clots: During a hospital stay, especially after surgery or injury, slow-moving blood can increase the risk of blood clots, particularly in those recovering from leg injuries or surgery.
- Post-hospital syndrome: This refers to a period of vulnerability lasting up to seven weeks after a patient is discharged from the hospital. It can include lingering fatigue, reduced strength, foggy thinking, or constipation. Changes in diet, routine, sleep patterns, and activity levels during hospitalization can contribute to this syndrome.
It is important to note that King Charles III's temporary side effects were specifically related to his cancer treatment, and the above-mentioned side effects are general examples of what can occur during or after any hospital stay.
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Cancelled engagements
King Charles III's cancer treatment has resulted in some cancelled engagements. The 76-year-old king underwent treatment after being diagnosed with an unspecified form of cancer in February 2024.
On March 27, 2025, King Charles was hospitalized at The London Clinic following temporary side effects from his ongoing cancer treatment. The palace reassured the public that the king was doing well, and he quickly recovered at Highgrove over the weekend. However, he had to cancel a tour of Birmingham on Friday, acting on medical advice. The king had planned to travel to the city for four events and was disappointed to miss them.
The king's wider state visit to Italy in April 2025 also underwent some alterations. The king and Queen Camilla's trip included a series of public and diplomatic events in Rome and Ravenna. A planned meeting with Pope Francis was postponed due to the pontiff's ill health.
In June 2024, King Charles was rushed to a London hospital for cancer treatment the day before his historic D-Day speech. Doctors suggested "compromises," and as a result, his carefully calibrated" appearance was reduced by 45 minutes on medical advice. Prince William stood in for his father at the celebration on Omaha Beach in France.
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Queen Camilla's support
King Charles III experienced temporary side effects from his cancer treatment and spent a short period of time in a London hospital in March 2025. The King has been open about his treatment, but the Palace has not disclosed further details about his diagnosis or the specific side effects he experienced.
Queen Camilla has been a supportive presence during this challenging time for the King. She has accompanied him on many official events and engagements, including a high-profile visit to the annual Highland Games in Scotland in 2004 and a state visit to Germany in March 2023, which was King Charles' first foreign visit as monarch. In November 2023, she was by his side at his first State Opening of Parliament as Sovereign.
Following the King's hospitalization, Queen Camilla continued to support him during their state visit to Italy in April 2025. She spoke to reporters about how her husband's work uplifts him during his recovery, saying, "I think he loves his work, and it keeps him going...That's what he's driven by—helping others." When asked about the idea of the King reducing his workload, she cheekily responded, "Dream on."
Queen Camilla has also been managing the ongoing rift between King Charles and his estranged son, Prince Harry, by adopting a hands-off approach and providing stabilizing support in the background. Despite the challenges, the Queen has maintained a united front with the King and has supported him in his royal duties and public engagements.
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King's health update
King Charles III was briefly hospitalised in March 2025 due to an adverse reaction to his cancer treatment. The 76-year-old king has been undergoing treatment since his cancer diagnosis in February 2024.
The King spent a short period of time in a London hospital on Thursday, after experiencing temporary side effects during his cancer treatment. He returned to Clarence House, where he continued to work on state papers and make calls from his study. The King's hospitalisation led to the cancellation of a planned visit to Birmingham, which included four public engagements, and meetings with three ambassadors.
Despite the setback, the King's health is trending in a positive direction, and he has been keen not to be defined by his illness. He has returned to a busy schedule of public duties and royal outings, including a trip to Canada in May 2025, and a state visit to Italy in April 2025, with some alterations to the planned programme.
The King's cancer diagnosis came as a shock, less than 18 months into his reign. While his diary is carefully managed, he has maintained a full schedule with the support of his medical team. The King's health update indicates that he is managing his illness effectively while continuing to fulfil his royal responsibilities.
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Frequently asked questions
No, Prince Charles is not currently in the hospital. He was admitted to the hospital briefly in March 2025 due to side effects from his cancer treatment. He has since returned to his royal duties and engagements.
Prince Charles experienced temporary side effects from his ongoing cancer treatment, which required a short period of observation in the hospital.
The specific side effects that Prince Charles experienced have not been disclosed by the Palace. However, they were described as temporary and minor.
Yes, Prince Charles has resumed his royal duties and engagements. He has undertaken trips to Canada and Italy, and has been carrying out a busy schedule of work.





















