Objective To investigate the clinical characteristics and methods for early diagnosis and treatment of traumatic progressive epidural hematoma (TPEDH).Methods The clinical and radiological data and outcome of 93 patients with TPEDH were reviewed retrospectively. On basis of reviewing literatures,results of these cases were analyzed.Results Among the 93 cases,72 were male and 21 were female,with an average age was 33 12 years. The average interval time from injury to the confirmed diagnosis of TPEDH was 8 13 hours.TPEDH was formed by the enlargement of small hemorrhage on initial CT scanning in 41 cases,and in the other 52 cases,the TPEDH occurred in the location of no hemorrhage on initial CT scanning.Among them,TPEDH in 28 cases was found after initial decompressive cranioctomy.The most common locations of TPEDH were tempo - parietal region and fronto - temporal region,followed by frontal,parietal,parieto - occipital and occipital region.The TPEDH was unilateral in 83 cases and bilateral in 10.Deterioration of consciousness was the most common manifestations and increased ICP after operations was the dominating manifestations in the cases who received initial decompressive cranioctomy.Conservative therapy was used in 5 cases and surgery in the other 88.primary decompressive craniectomy was made in 33 cases.Skull fracture was confirmed in 83 cases beneath TPEDH.According Glasgow Outcome Scale( GOS),scores of 5,4,3,2 and 1 was experienced in 56,20,10,3 and 4 patients respectively on discharge.Conclusion Most TPEDH occurres within the first 12 hours after injury and located in the impact site.Skull fracture in the impact site was the basic risk factor for the occurrence of TPEDH.Dynamic evaluations and repeated head CT scanning would contribute to the early diagnosis and improvement of the outcome if the occupying TPEDH was evacuated promptly.