Blood Pressure - Low
Alternate Names : Hypotension, Low Blood Pressure
DefinitionLow blood pressure is an abnormal condition where a person's blood pressure (the pressure of the blood against the walls of the blood vessels during and after each beat of the heart) is much lower than usual, which can cause symptoms such as dizziness or lightheadedness.
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Overview & Considerations
When the blood pressure is too low, there is inadequate blood flow to the heart, brain, and other vital organs.
A blood pressure level that is borderline low for one person may be normal for another. The most important factor is how the blood pressure changes from the normal condition. Most normal blood pressures fall in the range of 90/60 mm Hg to 130/80 mm Hg, but a significant change, even as little as 20 mm Hg, can cause problems for some people.
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