1 doctor weighed in:

I know low blood pressure can cause fainting, but can high blood pressure do it too?

1 doctor weighed in
Dr. John Hammes
Internal Medicine - Nephrology & Dialysis

In brief: 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).

In brief: 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).
Dr. John Hammes
Dr. John Hammes
Thank
Get help from a real doctor now
Dr. Adam Smith
Board Certified, Internal Medicine
13 years in practice
382K people helped
Continue
108,000 doctors available
Read more answers from doctors