A concussion is a type of brain injury caused by a blow to the head. It can be categorized as a minor injury requiring minimal treatment, or a major injury that requires immediate medical attention. A concussion can affect how the brain works for a long period of time and can be accompanied by a wide variety of symptoms.
The most common symptoms of this injury include a bad headache, changes in alertness, memory loss, confusion, irritability, fatigue, or a short term loss of consciousness. Minor concussions may not lead to loss of consciousness. In fact, a person can have a minor concussion and not realize it.
A concussion can affect how the brain works for a long period of time.
If any of the following symptoms are observed, seek immediate medical attention as a more serious brain injury
has occurred and it should be treated as an emergency:
Changes in alertness and consciousness
Confusion that does not go away
Muscle weakness on one or both sides
Pupils of the eyes that are not equal in size
Unusual eye movements
Walking or balance problems
Unconsciousness for a longer period of time or that continues (coma)
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