What causes Migraine?
Aug 16, 2022
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- The cause is not entirely clear.
- However, a common theory is that blood vessels in parts of the brain become narrower (go into spasm) which causes the aura.
- The blood vessels are then thought to open wide (dilate) soon afterwards, which accounts for the headache.
- There may also be a genetic factor involved as it often occurs in several members of the same family.
