[Science of Mild Traumatic Brain Injury].

Mild traumatic brain injury (TBI) is commonly encountered in daily medical practice. Approximately half of all patients with mild TBI develop postconcussional syndrome, and post-traumatic higher brain dysfunction is a cause of many social problems. This article defines and explains the diagnosis, pathology, symptoms, and sequelae of mild TBI from a scientific perspective, and "mild blast-induced TBI," which has recently become a major problem in military medicine, is also introduced.