The Journal of the American Medical Association has featured a review on the diagnosis and management of sports-related concussion. It begins with a case vignette, followed by a discussion of the following topics:

• Definition and pathophysiology of concussion

• Epidemiology of concussion associated with sports

• Evaluation after a fall and loss of consciousness

• Management of first concussion

• Prognosis after first concussion

• Prognosis after second concussion

• Preventing head injuries