Brain injury caused by a blow to the head or a violent shaking of the head and body.
A concussion is a brain injury caused by a blow to the head or a violent shaking.
Symptoms may be mild and subtle, but headaches, memory loss, and confusion are common. Repeated vomiting and some symptoms may require emergency care. Concussions in infants and toddlers can be difficult to recognize.
Rest is the most appropriate treatment.