The surgery is the latest in a series of health concerns for the leader of the world’s 1.4 billion Catholics who has been pope for the past 10 years.

He arrived at Rome’s largest hospital, a short drive from the Vatican, at about 1130 local time (0930 GMT).

Francis had made no mention of the planned operation at his weekly audience at the Vatican on Wednesday morning, where he appeared in good spirits.

The Vatican statement said the operation was necessary to repair a laparocele, a hernia that sometimes forms over a scar usually resulting from a previous surgery. It can also be caused by obesity or weakness of the abdominal wall muscles.

The pope’s medical team had decided in recent days that surgery, which will take place under a general anaesthetic, was required because the condition was causing painful, intestinal occlusions.

Francis had spent around 40 minutes at the same Roman hospital on Tuesday having a pre-operation procedure.

TRAVEL PLANS PUT IN PLACE

Francis was treated for five days at the same hospital at the end of March with a lung infection and last month skipped audiences for a day due to a fever. The hospital has a special 10th-floor suite reserved for popes

In July 2021 he had part of his colon removed in an operation aimed at addressing a painful bowel condition called diverticulitis. He said earlier this year that the condition had returned.

The pope also often uses a wheelchair or a cane to walk because of persistent knee pain. Last year he he didn’t want to have an operation on his knee because the general anaesthesia for his colon surgery had brought disagreeable side-effects.

Despite his health issues, Francis maintains a busy schedule. The Vatican announced plans on Saturday for him to visit Mongolia on Aug.31-Sept.4, one of the more remote places he has travelled to.

Before that he is due to visit Portugal from Aug. 2-6 to attend the World Youth Day in Lisbon and visit the Shrine of Fatima. The Vatican on Tuesday released an official schedule for the trip, giving an indication it was confirmed.

(Writing by Keith Weir, reporting by Philip Pullella; editing by Federico Maccioni, Crispian Balmer, William Maclean)