A series of 25 patients suffering acute post-traumatic intraventricular hemorrhage (IVH) after closed head injury is reviewed. Post-traumatic IVH was associated with other brain lesion in most cases; intracerebral lesions with contusion, subdural hematoma, and epidural hematoma coexisted with post-traumatic IVH in ten, three, and one instance, respectively. In six cases, no CT abnormality other than IVH was noted. The final outcome in this series is poor, only 10 (40%) patients made a functional survival. Four different groups of IVH were proposed according to the CT scan findings: deep nuclei hemorrhage, brain stem injury, white matter hemorrhage and isolated IVH. The group of isolated IVH usually got a good outcome. The abnormal motor response, abnormal pupil reaction and impaired oculocephalic response were reliable parameters for poor prognosis.