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A member asked:
I have had migraines for 15 years and no doctor can tell me why, what could it be?
4 doctors weighed in across 2 answers
Cause is uncertain: The actual cause of migraine headaches is not known. The vascular theory says that changes in the size of blood vessels leading to the brain causes changes in blood flow, with increased flow causing pain. The neurovascular theory says changes in brain signals and brain activity cause blood vessels to change sizes, resulting in pain from increases in blood flow. Additional theories also exist.
Answered 9/28/2016
6.3k views
Migraine: Migraine is now considered a neurologic disoorder with episodic presentation similar to epilepsy. The brain of migraineurs seems to be different than those who do not have the conditions. For reasons unknown at this point, the brain will iniitiate a wave of electrical activity that causes a release of inflammatory substances such as histamines, resulting in inflammation of the lining of the brain.
Answered 10/3/2016
5.5k views
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