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Print: What is a concussion?
A concussion is an injury to the brain that can cause a variety of symptoms. It's usually caused by a blow to the head, but can sometimes be caused by sudden head movement due to a blow to the body. Most of the time it doesn't involve a loss of consciousness.
Concussion in sports can happen during drills, practices and games. Injuries during practice can be just as serious as those that happen during competition.
Next: Symptoms
Source
Assessment and Management of Concussion in Sports by KG Harmon (American Family Physician September 01, 1999, http://www.aafp.org/afp/990901ap/887.html)
Written by familydoctor.org editorial staff
Reviewed/Updated: 05/10
Created: 09/00
