Report of two cases of jejunal multiple diverticula: The diverticulum membrane had an opening 12 cm in diameter, filled with food residues and intestinal juice. A few months ago, part of it formed a bezoar. Pathology report: duodenal diverticulitis of the jejunum, perforation of the jejunal diverticulum with necrotic tissue. Postoperative secondary abscess in the intestinal space required surgical drainage. Rare discharge after cure of multiple jejunal diverticula. The clinical pathogenesis is unclear. No specific clinical features; only positive fecal occult blood when there is bleeding or diverticulum inflammation. Small opening of the diverticulum, full of intestinal contents and food remnants. Barium is not easily able to enter the developing diverticulum. Difficult to diagnose before surgery, often found during laparotomy or other surgical complications. For example, case 2 was confirmed during exploration for diffuse peritonitis. Case 1 involved resection of the duodenal diverticulum. For diverticular perforation and other serious complications, simply remove the diseased bowel. When diverticulum perforation leads to peritonitis, especially in Taiwan, resection of the duodenal diverticulum is necessary due to inflammation, adhesions, mesenteric lymphadenitis, abscesses and other factors making surgery more difficult. For the jejunum, duodenum, and the duodenal area with less blood supply, a reason forå»(fistula)is relatively reliable side-to-side anastomosis.