A migraine aura is a warning sign of an oncoming migraine headache.
An aura develops gradually, usually within 30 minutes before a migraine
headache starts, and consists of visual disturbances and physical sensations.
Not everyone who suffers from migraines develops an aura. For those
who do, common symptoms of a migraine aura include:
Visual changes. For example:
Zigzag or wavy lines
sparks of bright or colored lights
Distortions in the shape or size of objects
or dark spots in the field of vision
Numbness or a "pins-and-needles" sensation in one
hand or the other.
Other, less common symptoms of a migraine aura can occur,
Tingling or numbness around the mouth and nose
or in the arms or shoulders.
Temporary weakness on one side of the
Brief inability to put words in the proper order, or
difficulty finding the right words.
Anne C. Poinier, MD - Internal Medicine & Colin Chalk, MD, CM, FRCPC - Neurology
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