Introduction: Trauma is one of the most common health problems worldwide, which results in many cases of physical disability every year. Considering the importance of the occurrence of trauma, this study was conducted to determine its epidemiology in trauma patients of the Trauma Center of Gorgan County, Golestan Province. Methods: This cross-sectional population-based study was conducted on 17941 Iranian trauma patients attending the Trauma Center of 5 Azar Educational Hospital, Gorgan County, from the beginning of 2013 through 2014 using the census method. The patients’ data were collected using a checklist designed by the Treatment Deputy of Golestan University of Medical Sciences on morning, evening, and night shifts by trained...