Pope Leo XIV Heads to Gemelli Ahead of His Peru Trip

Pope Leo XIV told pilgrims in St. Peter’s Square on Sunday, Oct. 11, that he will have surgery to remove a small nodule in his lung. The 71-year-old pope, born Robert Francis Prevost in Chicago, said doctors found it during recent checks, at a very early stage and in one place, and that the operation was already booked.

Holy See Press Office director Matteo Bruni said the surgery would take place at Rome’s Agostino Gemelli Polyclinic in the first days of the week of Oct. 12, with about one week of recovery after it. The Vatican has not identified the growth. It has not withdrawn a 12-day Latin America trip that begins Nov. 6 and includes Chiclayo, the Peruvian diocese Leo led from 2015 to 2023.

Leo XIV Announces Lung Surgery From the Angelus Window

The news came at the end of the Sunday Angelus, in public, in Italian, to the square and to cameras. That is how the first American pope chose to say he is going into a hospital, 17 months after the conclave of May 8, 2025, elected him the 267th pope.

The Holy See’s English text of his remarks is spare. He did not name a date, a surgeon, or a diagnosis beyond the word nodule.

Dear friends, during some recent medical examinations, the doctors found a small, localized nodule in my lung. It was detected at a very early stage and is well-localized. The doctors believe that it is best to intervene, so, following their advice, I have decided to undergo surgery to remove it. The operation is already scheduled to take place in the coming days. I thank you for your spiritual closeness and entrust myself to your prayers. Thank you, and happy Sunday!

Pope Leo XIV, Angelus, St. Peter’s Square, Oct. 11, 2026

The same wording went out on his official account a few hours later, which is the version most of the world saw first.

Dear friends, during some recent medical examinations, the doctors found a small, localized nodule in my lung. It was detected at a very early stage and is well-localized. The doctors believe that it is best to intervene, so, following their advice, I have decided to undergo…

— Pope Leo XIV (@Pontifex) October 11, 2026

Bruni, taking questions after the prayer, filled in the hospital and the clock. He said the operation is scheduled for the first days of this week and that “the estimated post-operative recovery time will be about one week.” He did not say which day Leo would be admitted, and by Monday morning, Oct. 12, the Holy See had not posted a new medical bulletin.

Italian President Sergio Mattarella, Prime Minister Giorgia Meloni, Rome Mayor Roberto Gualtieri, and the Italian Bishops’ Conference sent public good wishes. Villanova University, where Prevost earned a mathematics degree in 1977, put out its own prayer for a full recovery. In Chicago the bulletin landed as a hometown medical notice as much as a Vatican one.

The Vatican Has Not Named the Nodule

Leo used the English word nodule and, in Italian, a phrase that means a growth confined to one spot. He said it was small, found early, and well localized. That is the entire clinical picture the Holy See has offered.

A pulmonary nodule is a spot of abnormal growth in the lung. Doctors usually see it on a chest X-ray or a CT scan done for some other reason, because small nodules rarely cause a cough, chest pain, or shortness of breath. Cleveland Clinic, in a patient guide last updated in 2024, says radiologists now find them on nearly 1 of every 3 chest CT scans. Infections, old scars, autoimmune disease, and cancer can all leave that kind of mark. Most lung nodules aren’t cancer, and many are left alone and watched on later scans.

Surgery is not the default. Cleveland Clinic says a doctor is more likely to want a tissue sample if a nodule is larger than 9 millimeters, or if the patient has listed risk factors that include smoking history, a prior cancer, and being older than 65. Leo is 71. The Vatican has not said how large the nodule is, whether a biopsy has already been done, or whether the team plans a camera-guided operation or a larger opening in the chest. Video-assisted thoracic surgery is one of the methods that guide lists for taking a nodule out, and it is often chosen when a growth is small and in one place. That has not been confirmed for this case.

WHAT WE KNOW

• The finding: Doctors found a small, well-localized nodule in one lung during recent checks, and Leo said they advised taking it out.
• The hospital: Bruni said the operation is at the Agostino Gemelli Polyclinic, on a timetable of the first days of the week of Oct. 12.
• The recovery estimate: Bruni gave about one week after surgery, which is an estimate, not a discharge date.

WHAT IS UNCONFIRMED

• The diagnosis: The Holy See has not said whether the nodule is benign, malignant, or still untested.
• The method: No surgeon, incision type, or anesthesia plan has been released.
• The calendar: No new notice has moved or cancelled the Nov. 6 to 17 Latin America programme.

That silence is doing a lot of work. People who heard “lung” and “surgery” in the same sentence reached for cancer because that is the fear a lung finding carries, and because Leo’s age sits inside the group doctors watch more closely. The public file does not support that leap. It also does not rule it out. The only honest line is the one the pope used: doctors want it removed, and he agreed.

The 10th Floor John Paul II Called Vatican III

Gemelli is not a random Roman hospital. It is a Catholic teaching complex, opened to patients in 1964 on land Pope Pius XI had given to the Franciscan physician Agostino Gemelli. John Paul II was rushed there after he was shot in St. Peter’s Square on May 13, 1981, and he underwent a six-hour operation. He went back so often that he nicknamed the place Vatican III, after Vatican City and the summer house at Castel Gandolfo.

The 10th floor holds a secure papal apartment with a bedroom, a sitting room, a bathroom, and a private chapel. Francis recovered in that same suite after later operations. Leo, who has had no public hospital stay in this papacy, is expected to use it as well.

POPES IN THE OPERATING ROOM

Francis returned to Gemelli on March 29, 2023, for a respiratory infection, and again from June 7 to 16, 2023, for hernia repair. On Feb. 14, 2025, he was admitted with a respiratory infection that became pneumonia in both lungs, a stay that ran into March, weeks before his death that April. As a young man he had also had part of a lung removed. Leo is walking into a building that, for Catholics, still smells of that last illness.

Benedict XVI was never admitted there as pope. The 10th floor is a John Paul and Francis room, and now it is being prepared for an American who has spent his public life looking nothing like a patient.

November’s 12-Day Trip Still Includes Chiclayo

On Sept. 21 the Holy See Press Office published the programme for Leo’s apostolic journey to Uruguay, Argentina, and Peru. It runs from Nov. 6 to 17, covers ten cities over twelve days, and is the longest foreign trip of this papacy. The Sunday medical news sits 26 days before the published departure from Rome.

If Bruni’s week holds, Leo would be out of Gemelli around Oct. 19 to 21, which would leave more than two weeks before the Nov. 6 flight. Papal recoveries have a habit of running past the first estimate, and this itinerary is not a light one. It is built on short hops, outdoor Masses, and a long last leg in the country where Prevost was a missionary and then a bishop.

THE NOVEMBER JOURNEY AS PUBLISHED

• Uruguay, Nov. 6 to 8: Montevideo, Paysandú, and Florida, the first papal visit since John Paul II in 1988, with a 7:00 a.m. departure from Rome’s Fiumicino airport on Nov. 6.
• Argentina, Nov. 8 to 11: Buenos Aires, Córdoba, and Luján, Francis’s home country, which has not had a pope on the ground since 1987.
• Peru, Nov. 11 to 17: Lima, Chiclayo, Cuzco, and Pucallpa, the longest stage, including the diocese Leo led and a stop with Amazon communities in Pucallpa.

Chiclayo is the load-bearing date. Prevost was named bishop there in 2015 and left in 2023 when Francis brought him to Rome to run the office that helps choose bishops. A pope can postpone a Mass in Montevideo. Cancelling Chiclayo would read as something else, because that is the city that made the American cardinal a Latin American pastor. Argentina, booked as a visit to Francis’s country, is the other political weight on the same ticket.

Bruni’s line about recovery does not mention the trip. The Press Office has not issued a revised programme. Until it does, the published list is the list, and the slack in the calendar is the whole medical story that is not the nodule.

John Paul II Used the Angelus for This Too

Leo’s choice to speak from the window has a direct precedent. On July 12, 1992, John Paul II told the square he would go that evening to Gemelli for diagnostic tests. Three days later, on July 15, surgeons removed a colon tumor that proved benign, in an operation that ran from 6:25 to 10:15, almost four hours. Doctors then talked about about 10 days in the hospital. He blessed the square by recording while he was still upstairs.

Leo went further than that 1992 notice. He named the finding, named the plan, and asked for prayer before anyone had wheeled him out of the Apostolic Palace. Francis often let the Press Office announce a hospital admission after he had already arrived. Leo held the microphone himself, which keeps the first draft of the story in his wording: small, early, localized, surgery, prayers.

Paul VI was operated on inside the Apostolic Palace on Nov. 4, 1967, so that a pope would not have to cross Rome. Leo XIII had an inflamed cyst taken out in March 1899. The pattern since John Paul II is different. The pope leaves the walls, Gemelli clears the 10th floor, and the Church watches a hospital gate the way it once watched a balcony.

That is the memory Leo is stepping into, and it is heavier than a one-week estimate. Francis’s last long stay at the same hospital is less than two years old. A 71-year-old pope with a lung finding, even a small one, reopens a file the conclave of May 2025 had tried to close by picking a man who still took stairs at a normal pace.

A One-Week Stay Leaves Little Slack for Peru

Similar lung operations, when the growth is small and in one place, are often done with a camera and a short list of cuts, and relatives of patients describe people walking out within days. A pope’s recovery is never only that. He has to be well enough to stand through Masses, to fly, and to be seen doing both without looking fragile, because the image is part of the office.

Bruni’s week, counted from the first days of the week of Oct. 12, would put Leo back at the Vatican before November. The Nov. 6 to 17 programme would then sit on the far side of a short convalescence, with Chiclayo still on the page. If the stay stretches, or if the tissue report that has not been discussed in public requires more treatment, the first thing to move is that itinerary, not the doctrine of the Church.

For now the facts are the ones said in the square. A small nodule, surgery at Gemelli, about one week, and a 12-day trip that still lists the Peruvian diocese he once ran. The next bulletin from Bruni will tell which of those lines still holds.

Disclaimer: This article is news reporting on a public statement by Pope Leo XIV and the Holy See Press Office. It is for information only and is not a medical diagnosis, a prognosis, or treatment advice for the pope or for anyone else. It does not tell readers how to read a lung scan, whether a nodule needs surgery, or what recovery should look like. Anyone with a lung finding of their own should speak with a qualified physician, such as a pulmonologist or thoracic surgeon, before making a health decision. Dates, hospital plans, and the November itinerary reflect the Vatican’s statements as issued on and after Oct. 11, 2026, and those details can change.