During the last ten years we have seen fourteen patients with duodenal injury after blunt trauma. Five patients with intramural hematomas received no treatment. Nine patients had a perforated duodenal wall, and in four of these the diagnosis was delayed for more than 24 hours. Revision and primary suture were carried out in seven patients, with no complications. In one patient, where the diagnosis was delayed for three days, the perforation was closed around a Pezzer catheter for external drainage. She developed an intraabdominal abscess which required reoperation. One patient died from liver injury with profuse bleeding; the others survived without sequelae from the duodenal injury. CONCLUSIONS Duodenal injuries are rare and early diagnosis is difficult. We think that frequently repeated physical examinations, liberal use of diagnostic peritoneal lavage, and careful peroperative exploration of the entire duodenum when performing laparotomy after abdominal injuries, are important for early diagnosis and treatment.