Headache - migraine
A migraine is a common type of headache that may occur with symptoms such as nausea, vomiting, or sensitivity to light. In many people, a throbbing pain is felt only on one side of the head.
Some people who get migraines have warning symptoms, called an aura, before the actual headache begins. An aura is a group of symptoms, including vision disturbances, that are a warning sign that a bad headache is coming.
Migraine headaches tend to first appear between the ages of 10 and 45. Sometimes they may begin later in life.
A migraine is caused by abnormal brain activity, which is triggered by stress, certain foods, environmental factors, or something else. However, the exact chain of events remains unclear. Today, most medical experts believe the attack begins in the brain, and involves various nerve pathways and chemicals. The changes affect blood flow in the brain and surrounding tissues.
Migraine attacks may be triggered by:
Certain foods and preservatives in foods may trigger migraines in some people. Food-related triggers may include:
This list may not include all triggers.
True migraine headaches are not a result of a brain tumor or other serious medical problem. However, only an experienced health care provider can determine whether your symptoms are due to a migraine or another condition.
Wilson JF. In the clinic: migraine. Ann Intern Med. 2007;147(9):ITC11-1-ITC11-16.
Ebell MH. Diagnosis of migraine headache. Am Fam Physician. 2006;74(12):2087-2088.
Detsky ME, McDonald DR, et al. Does this patient with headache have a migraine or need neuroimaging? JAMA. 2006;296(10):1274-1283.
Loder E. Triptan therapy in migraine. N Engl J Med. 2010 Jul 1;363(1): 63-70.
Silberstein SD, Young WB. Headache and facial pain. In: Goetz CG. Textbook of Clinical Neurology. 3rd ed. St. Louis, Mo: WB Saunders; 2007:chap. 53.
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