A concussion is a brain injury. It may be caused by a sudden blow to the head or by a sudden movement that causes the brain to shake within the skull, which can cause bruising, injure nerves and damage blood vessels.Actions that increase the risk for a concussion include:
Concussions are usually not life-threatening, but they can cause serious symptoms that need medical treatment. These symptoms usually appear soon after the injury. Some symptoms may not show up for hours or days.Signs of a concussion may include:
Concussions are difficult to prevent since they are unexpected. You can take precautions to reduce the risk of brain injury while being active outdoors and at home.Outdoors:
Medical experts also recommend close follow-up with your doctor if symptoms worsen or fail to improve.
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