Objective: To evaluate the factors resulting in the poor outcomes in patients with extradural hematoma (EDH).Methods: The study was conducted at the Neurosurgery Teaching Hospital in Baghdad with a group of 100 surgically treated EDH patients and was carried prospectively from February 1st, 2015 to May 1st, 2017. The baseline information (gender, age, cause of injury, time interval between injury and reception, Glasgow coma scale, etc.) of the patients was recorded, and the variables affecting the outcomes were analyzed. Results: In the study, 80％ of patients were male; 54％ were between 10-29 years old; the commonest cause of injury was fall accounting for 51％; 78％ of the patients got good functional recovery, and 10％ had a residual disability; 12％ died. Better functional recovery was found among patients with a shorter time interval (≤3 h) (P=0.001), while the longer time interval (>3 h) increased the residual disability (P=0.005). In addition, functional recovery increased six times with higher Glasgow coma scale (P=0.001), and inversely related to mortality (P=0.005). Conclusions: Age between 10 and 29 years, male gender, and depth of hematoma more than 5 cm are at higher risks of poor outcomes of patients with surgically treated EDH. Neurological conditions on admission and time interval between injury and reception are also important factors.