A case of post-traumatic intramural haematoma of the duodenum is presented in this report. The patient was admitted to the unit after multiorgan injury. Preliminary examination (X-ray, USG - diagnosis, paracentesis of the abdominal cavity) showed abdominal hemorrhage. The patient was urgently operated on (splenectomy and partial small bowel resection). The post-surgical period was complicated by intramural duodenal haematoma, which blocked the passage of chyme to distal portions of the alimentary tract. The patient was treated conservatively. On postoperative day 9, the ailment receded. The patient was discharged from the hospital in good general condition.