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What causes Low Blood Pressure?

By  , Expert Content
Feb 24, 2011
4.8 / 5(4 Ratings)

The cause of low blood pressure is often not clear. Some causes of low blood pressure include;

  • Pregnancy
  • Certain medications, such as medications for high blood pressure, certain heart medications, certain medications for Parkinson's disease, tricyclic antidepressants, or medications to treat erectile dysfunction
  • Heart diseases like slow heart beat, disturbance of heart rhythm, diseases of heart valve, heart attack, or heart failure
  • Hormonal or endocrine problems such as hypothyroidism, overactive thyroid (hyperthyroidism), Addison's disease, low blood sugar, or diabetes
  • Heat exhaustion or heat stroke

 

What Causes a Sudden Drop in Blood Pressure?


A sudden drop in your blood pressure can become an emergency. Some causes of sudden drop in blood pressure include:

  • Excess loss of blood
  • Alteration in body temperature (low body temperature or high body temperature)
  • Disease of heart muscle (myocarditis) causing heart failure
  • Sepsis, or serious infection of the blood stream
  • Severe dehydration or loss of water from body due to vomiting, diarrhea, or fever
  • Anaphylactic reaction (it is a life-threatening allergic reaction)

 

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Comments
  • Cecil Kent04 Mar 2012
    I have Type II Diabetes. I have a problem when I exercise in that my blood pressure drops dangerously low. Once in rehab it feel to 70 over 50. They bared me from rehab and said there is no recovery from that problem. They can usually only bring you back from rapid heart beats or fibrillation with a defibrillator. What is this called? And can it be cured. Dr. Umberto Coto of St Joseph's Hospital said nothing can be done.