After the introduction of CT (GE-CT/T) in January, 1980, we experienced 81 cases of head injury. We diagnosed these cases into normal in 50 cases, epidural hematoma in 8 cases, subdural hematoma in 5 cases, intracerebral hematoma in 3 cases, cerebral contusion or cerebral swelling in 14 cases and combined hematoma in 1 case, based on CT findings. We diagnose normal, when no abnormal finding is present intracranially. Epidural hematoma is visualized as a bicrescent-shaped high density area on CT scan. Subdural hematoma appears as a crescent-shaped high density area on CT finding. Intracranial hematoma is visualized as a high density area in the brain tissue on CT scan. Cerebral contusion presents as salt and pepper appearance on CT scan representing area of high and low density complex. Brain swelling is visualized as disappearance or compression of ventricles, cisterns, sulci and gyri.