The records of 25 patients with traumatic diaphragmatic injuries seen at Chosun University Hospital from February 1977 to May 1991 were reviewed. We treated 20 male and 5 female patients ranging in age from 6 to 72 years. The diaphragmatic injuries were due to blunt trauma in 19 cases[traffic accident 13, fall down 4, compression injury 2] and penetrating trauma in 6 cases[stab wound 5, gun shot 1]. Most common symptoms were dyspnea[72%], chest pain[56%] and abdominal pain [40%], Chest X-ray were normal in 7 cases[28%] and 22 cases[88%] were diagnosed or suspected as diaphragmatic injuries preoperatively. The repair of 25 cases were performed with thoracic approach in 16 cases, thoracoabdominal approach in 6 cases and abdominal approach in 3 cases. Postoperative complications included atelectasis, wound infection and empyema. there was no postoperative death.