A ten year review of penetrating thoracic and abdominal trauma examined pattern of injury, patient management and outcome. Ninety-six patients were included in the study, 55 with injury to the abdomen, 31 the thorax and 10 with injury to both areas. Fifty-eight cases were managed non-operatively; 5 combined abdominal and thoracic injuries, 26 thoracic and 27 abdominal. Two cases went on to require operative management for intra-abdominal injury. Thirty-eight cases were managed operatively; 5 combined cavity injuries, 5 thoracic and 28 abdominal. Injuries were found in all of the combined cavity and thoracic cavity cases. Of the 28 abdominal cases, nine were found on laparotomy to have no significant visceral or vessel injury, one, however, was performed for omentum protruding through the wound. While a negative laparotomy was a relatively safe procedure, non-operative management had the advantages of a shorter hospital stay without wound-related morbidity. Selective non-operative management was found to be a relatively safe approach in this series.