The occurrence of delayed intracerebral hemorrhage is more frequent than previously reported and is associated with a poor outcome. Early detection and proper management is important in that aspect. The progression tends to be insidious. When the patient's consciousness gets worse or is not improving within resonable time, the second CT scan should be performed. In a retrospective study of 211 consecutive patients with traumatic intracranial hematomas, we identified 12 cases(5.6%) with delayed traumatic intracerebral hemorrhage(DTICH). Among these, five(41.6%) died of DTICH. Cerebral contusion on initial CT, acceleration-deceleration injury with rotational forces, surgical decompression would be important contributors in the development of DTICH.