Does high blood pressure cause nausea, fainting or dizziness?

Dr. Kimberly A. Parks, DO
Cardiologist (Heart Specialist)

When blood pressure is very high, there are a number of symptoms that a person may experience, including nausea or dizziness. Some other symptoms of very high blood pressure are:

  • Headache
  • Shortness of breath
  • Chest pain
  • Dizziness
  • Nausea
  • Ringing in the ears (tinnitus)
  • Pounding in the chest
  • Blurry vision

It is important to remember that high blood pressure often causes no symptoms at all, and therefore has been called "the silent killer." Unfortunately, people do not often seek medical attention until they experience symptoms. A person can have high blood pressure for many years without knowing it. If high blood pressure is left untreated, it can lead to:

  • Heart attacks
  • Stroke
  • Heart failure
  • Severe kidney damage
  • Damage to other blood vessels in the body including the eyes, legs and aorta (the main blood vessel that supplies blood to the body). 

Almost 75 million Americans have high blood pressure, which is also known as hypertension. High blood pressure is easy to detect and easy to control. If you are not known to have high blood pressure, screening should be done AT LEAST once per year. A normal blood pressure is LESS THAN 120/80 mmHg, if you blood pressure is higher you may have hypertension and you should contact your Doctor.


  • High Blood pressure is easy to detect and easy to control
  • You should have a screening blood pressure measurement annually, at minimum
It is possible for nausea or dizziness to be a symptom of high blood pressure. High blood pressure can present with a multitude of symptoms, or without symptoms at all, which is how it got the nickname the ‘Silent Killer’.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.