Low Blood Pressure Alert: 10 Symptoms You Shouldn't Ignore

6. Fainting or Syncope

A rapid drop in blood pressure can result in loss of consciousness due to inadequate blood flow to the brain and reduced oxygen supply and is medically known as syncope. Even a brief lack of these essential components can result in dizziness, lightheadedness, or loss of consciousness. A person experiencing severe orthostatic hypotension may feel dizzy or lose consciousness because of reduced blood volume, or hypovolemia, a common causes of hypotension. Common causes are hemorrhage, dehydration, starvation, and excess fluid loss.