President Biden had a benign, slow-growing and potential precancerous polyp removed from his colon during last week’s unexpected colonoscopy, his doctor revealed in a memo.

The 3 millimeter polyp was identified as a “tubular adenoma” — similar to the polyp Biden had removed in 2008, the president’s doctor Kevin O’Connor said Wednesday.

The specimen, while benign, is potentially thought to be precancerous but there is “no further action” required for the president, other than routine checkups, the physician said.