Pope Francis has been reported to have gone to the hospital on Wednesday, for surgery on his intestine, two years after he had 33 centimeters (13 inches) of his colon removed because of an inflammation and narrowing of the large intestine.
The Vatican said Francis, 86, would be put under general anesthesia and would be hospitalized for several days.
Pope Francis appeared at his weekly general audience on Wednesday, a day after he went to the hospital for a checkup.
The Argentine pope had part of one lung removed when he was a young man. He also suffers from sciatica nerve pain and has been using a wheelchair and walker for more than a year because of strained ligaments in his knee.