In order to collect and evaluate information concerning aspects of injuries in our pediatric population, we developed the first Spanish Pediatric Trauma Registry. During 1995, 11,307 patients were seen at our hospital for acute injuries: 521 were admitted to the hospital and are included in our database. Each patient's protocol consists of 103 data points including: patient identification, type, place and mechanism of injury, prehospital care, transport, assessment on admission, severity scores, diagnostic studies, injuries, treatment and morbidity-mortality. We found that accidents were more frequent in males (69) than in females. The predominant age group was 12-15 years (36%). Falls were the leading cause of injury (37%). A pediatric trauma score of 8 or less was seen in 13.4% of the cases. Twenty-nine patients were hospitalized in the Intensive Care Unit and 214 needed some surgical treatment. The utility of this registry is: 1) The knowledge of the epidemiology of our pediatric population. 2) To know and correct prehospital care deficiencies. 3) To improve hospital assistance and to recognize early prognosis factors.