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Symptoms
By Mayo Clinic staffPost-concussion symptoms, which vary, include:
- Headaches
- Dizziness
- Fatigue
- Irritability
- Anxiety
- Insomnia
- Loss of concentration and memory
- Noise and light sensitivity
Headaches that occur after a concussion can vary and may feel like tension-type headaches, cluster headaches or migraines. Most, however, are tension-type headaches, which may be due to a neck injury that happened at the same time as the head injury. In some cases, people experience behavior or emotional changes after a mild traumatic brain injury. Family members may notice that the person has become more irritable, suspicious, argumentative or stubborn.
When to see a doctor
See a doctor if you experience a head injury severe enough to cause confusion or amnesia — even if you never lost consciousness. If a concussion occurs while you're playing a sport, don't go back in the game, seek medical attention so that you don't risk worsening your injury.
- Postconcussion syndrome. In: Goetz C. Textbook of Clinical Neurology. Philadelphia, Pa.: Saunders Elsevier; 2007. http://www.mdconsult.com/das/book/body/151733211-2/866692859/1488/428.html?printi. Accessed July 24, 2009.
- Evans RW. Post-concussion syndrome. http://www.uptodate.com/home/index.html. Accessed July 27, 2009.
- Kirsch TD, et al. Head injury. In: Tintinalli JE, et al. Tintinalli's Emergency Medicine: A Comprehensive Study Guide. 6th ed. New York, N.Y.: McGraw-Hill Companies; 2004. http://www.accessmedicine.com/content.aspx?aID=610258. Accessed July 24, 2009.
- Ropper AH. Concussion and other head injuries. In: Fauci AS, et al. Harrison's Principles of Internal Medicine. 17th ed. New York, N.Y.: McGraw-Hill Medical; 2008. http://www.accessmedicine.com/content.aspx?aID=2904523. Accessed July 24, 2009.
- Ropper AH, et al. Craniocerebral trauma. In: Ropper AH, et al. Adams and Victor's Principles of Neurology. 9th ed. New York, N.Y.: McGraw-Hill Companies; 2009. http://www.accessmedicine.com/content.aspx?aID=3638543. Accessed July 24, 2009.
- Traumatic brain injury: Hope through research. National Institute of Neurological Disorders and Stroke. http://www.ninds.nih.gov/disorders/tbi/detail_tbi.htm. Accessed July 27, 2009.
- Brown AW (expert opinion). Mayo Clinic, Rochester, Minn. Aug. 4, 2009.
