As the result of examination of 92 patients with acute craniocerebral trauma it was established that the use of HBO in the complex of therapeutic measures is permissible after removal of an intracranial hematoma despite occasional convulsive paroxysms, if there is no history of epilepsy. Exposure to HBO does not intensify or cause a recurrence of bleeding in traumatic subarachnoid hemorrhage and after operation for intracranial hematomas and brain contusion. Exposure to HBO does not cause an effect on the intensity of liquorrhea in the patients and does not lead to pneumocephalus or infection of the subarachnoid space.