We propose that the term concussion should be retired because it has no clear and consistently understood definition, leads to diagnostic confusion and can limit the use of effective treatments of post-traumatic problems. Instead, neurologists should adopt a single classification system for all TBI based on injury severity and attempt a precise diagnosis of post-traumatic problems. It is important to recognise that mild TBI is not always a benign condition, and patients sometimes fail to recover from what may appear to be innocuous injuries. It is difficult to predict clinical outcome and interventions can reduce the burden of disability after TBI. Therefore, neurologists should review more patients with TBI and intervene more actively.