Concussion | Symptoms

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Learn More About Concussion Symptoms

Concussion

What are some signs of a concussion?

In most cases, a person who has a concussion will not lose consciousness. A concussion can cause a variety of symptoms, including:

  • Headache or feeling of pressure in the head
  • Problems remembering or concentrating
  • Dazed appearance
  • Confusion
  • Noticeable balance problems
  • Slow response to questions
  • Nausea
  • Dizziness
  • Blurry vision
  • Sensitivity to light or noise
  • Changes in mood or behavior (for example, irritability)
  • Sleep changes (for example, having trouble falling asleep or sleeping more than usual)

Symptoms may be noticed right after the injury, or they may not be noticed until hours or days later.

Bibliography

See a list of resources used in the development of this information.

Written by familydoctor.org editorial staff

Reviewed/Updated: 02/14
Created: 09/00

Learn More About Concussion Symptoms

Concussion

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