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A member asked:
I know low blood pressure can cause fainting, but can high blood pressure do it too?
A doctor has provided 1 answer
Rarely: If blood pressure is really high, it could cause a stroke (very serious) and some strokes can cause abrupt loss of consciousness (fainting); generally, low blood pressure is a much more common cause of loss of consciousness (not enough blood flow to the brain).
Answered 10/3/2016
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