Pope Leo XIV has been diagnosed with lung cancer, the Vatican announced on Tuesday, hours after surgeons at Rome's Gemelli hospital removed the lower lobe of his right lung. The 71-year-old pontiff came through the operation without complications, according to the Vatican's medical bulletin, and is expected to spend about a week recovering.
The diagnosis is lung adenocarcinoma, the most common form of lung cancer. Tests before the surgery had pointed in that direction, and examinations after the procedure confirmed it.
How the news unfolded
The Pope himself first made his health public. During his Sunday noon prayer in St Peter's Square on October 11, he told the faithful that doctors had found a small, localised nodule in his lung and that, on medical advice, he had decided to have it removed. Observers described the disclosure as unusually open by Vatican standards, where papal health has often been handled with great discretion.
On Monday, the Vatican cancelled all of his audiences up to October 20. On Tuesday morning, Leo walked into the Gemelli hospital through its main entrance and waved to well-wishers gathered outside before going into surgery.
Inside the operation
The operation was carried out by a team led by Dr Stefano Margaritora, Gemelli's chief thoracic surgeon. The Pope was in the operating theatre for about three hours, while the surgery itself took around 90 minutes. The Vatican called it "successful" and said "there were no complications".
The Holy See press office described the removal of the lobe as "radical", meaning doctors took out all the suspected tissue in an attempt to remove every trace of the cancer. Oncologists quoted before the surgery had described the prognosis as "excellent" because the nodule was caught at an early stage.
| Key fact | Details |
|---|---|
| Patient | Pope Leo XIV, 71 |
| Diagnosis | Lung adenocarcinoma |
| Procedure | Removal of lower lobe of right lung |
| Hospital | Gemelli hospital, Rome |
| Lead surgeon | Dr Stefano Margaritora |
| Surgery date | Tuesday, October 13, 2026 |
| Surgery length | About 90 minutes |
| Audiences cancelled | Until October 20 |
| Expected recovery | About one week in hospital |
Recovery and the road ahead
The Vatican has not yet shared a detailed treatment plan. According to reports, doctors are not currently discussing chemotherapy or other therapies, and are waiting for the results of further tests before deciding on any next steps.
Leo is recovering on the 10th floor of the Gemelli hospital, in a room near the papal apartment that has a private chapel, as the apartment itself is being renovated. Until this week, he had no reported history of serious illness and was known to stay active by swimming and playing tennis. This is the first major health problem to be made public since he became Pope about 17 months ago.
Questions over the Latin America tour
The biggest question now is his travel calendar. Leo is scheduled to make an official tour of Latin America from November 6 to 17, with stops in Uruguay, Argentina and Peru. The itinerary includes around a dozen flights, two helicopter rides and big changes in altitude in Peru. The Pope told reporters on Sunday that he still intends to make the trip, but the Vatican has not said whether his recovery will change the plans.
Why the world is watching
The Pope leads more than a billion Catholics worldwide, including a sizeable community in India, where churches in Kerala, Goa, Tamil Nadu, Mumbai and the North-East have large congregations. Any change in his health is followed closely by believers and by governments alike, since the Vatican plays a role in diplomacy and humanitarian issues.
The transparency of this episode also stands out. Leo chose to announce his condition himself before the surgery, and the Vatican put out a clear medical bulletin soon after the operation. For a Church that has sometimes been criticised for secrecy over papal health, that approach has been widely noted.
What happens next
In the coming days, the Vatican is expected to issue further health updates, including the results of the pending tests that will guide any additional treatment. Audiences remain suspended until October 20, after which the Vatican is likely to confirm whether the Pope's public schedule, and his November journey to South America, will go ahead as planned.
For now, the message from Rome is cautiously positive: the cancer was found early, the surgery went smoothly, and the Pope is resting.
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