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Causes and symptoms of low blood pressure

August 23, 2017

Causes and symptoms of low blood pressure

Blood pressure is an important aspect of our well-being. This attribute is significant because it is closely associated with the rate and force of the heartbeat and also the diameter and elasticity of the arterial walls. Fluctuation in the blood pressure is a common condition.

Blood pressure is measured in mmHG (millimeters of mercury) and is often denoted by two numbers. The top number is systolic blood pressure, while the bottom one is diastolic blood pressure. A normal reading is 120/80. When it is consistently over 140/90, the person is said to have high blood pressure and when the reading is less than 90/60 it signifies low blood pressure.

Experiencing low blood pressure without symptoms is not to be worried about as it might signify an underlying condition, particularly in the old age.

Causes of low blood pressure
There are many reasons for low blood pressure. Let us look at some of the common causes of lower blood pressure:

  • Hormonal problems such as hypothyroidism or diabetes or heart-related diseases
  • Some prescribed medicines to lower high blood pressure, Parkinson’s disease or depression
  • Abnormal heart rhythms
  • Heat stroke or heat exhaustion
  • Dilation or broadening of the blood vessels
  • Lack of proper nutrition in your daily diet that might lead to overall weakness.
  • In pregnancy too, blood pressure can fall

Other causes that result in sudden low blood pressure include loss of blood, low or high body temperature, Sepsis, a severe allergic reaction called anaphylaxis, and severe dehydration.

Symptoms of low blood pressure
Low blood pressure that is hypotension is a pressure which is so low that it initiates signs or symptoms due to the low flow of blood through the veins and arteries.

  • Occasional dizziness or lightheadedness
  • Blurred vision or nausea
  • Sudden fainting
  • Lack of concentration
  • Rapid or very shallow breathing
  • General weakness throughout the body or rapid pulse

Chronic low blood pressure without any symptoms is safe, but still, it can lead to many health problems in case there is a sudden drop where the brain is deprived of sufficient blood supply. One must also note that trying to lower high blood pressure may result in low blood pressure. Thus, knowing the causes and symptoms stand vital to treat low blood pressure before any complications arise.

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