11 Causes of Low Blood Pressure and Symptoms


KOMPAS.com – Hypotension or low blood pressure is often not considered a serious condition and causes problems, such as high blood pressure (hypertension).

In fact, according to the Mayo Clinic, abnormally low blood pressure can cause dizziness and fainting. In severe cases, low blood pressure can also be life-threatening.

Low blood pressure is a condition when the blood pressure reading is lower than 90 mm Hg for systolic or 60 mm Hg for diastolic.

One way to treat low blood pressure is to identify the cause. Causes of low blood pressure include dehydration and serious underlying medical disorders.

Also read: 11 Symptoms of Hypertension to Watch Out for

UNSPLASH/EPHRAIM MAYRENA Symptoms of low blood pressure include fatigue, dizziness, and fainting. It is important to know the cause of low blood pressure to find a solution.

For some people, low blood pressure is a signal of an underlying disease, especially if the blood pressure drops suddenly or is accompanied by symptoms such as:

  • Dizzy
  • Faint
  • Loss of vision
  • Nauseous
  • Fatigue
  • Lack of concentration

Extremely low blood pressure can trigger a life-threatening condition. Signs and symptoms of extreme low blood pressure include:

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  • Confusion, especially in older people
  • Cold, damp, pale skin
  • Breath fast and shallow
  • Pulse is weak and fast

Also read: Is it true that eating goat meat can treat low blood pressure?

Causes of low blood pressure

Dehydration is the most common cause of low blood pressure in patients who exhibit symptoms such as nausea, vomiting, diarrhea, or excessive exercise, which diverts blood from the body's vital organs to the muscles.FREEPIK/JCOMP Dehydration is the most common cause of low blood pressure in patients who exhibit symptoms such as nausea, vomiting, diarrhea, or excessive exercise, which diverts blood from the body’s vital organs to the muscles.

Some conditions that can cause low blood pressure include:

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1. Dehydration

According to MedicineNet, dehydration is the most common cause of low blood pressure in patients who exhibit symptoms such as nausea, vomiting, diarrhea, or excessive exercise, which diverts blood from the body’s vital organs to the muscles.

A large amount of water is lost during vomiting and diarrhea, especially if the person does not drink enough fluids to replace the lost water.

2. Pregnancy

Because the circulatory system develops rapidly during pregnancy, blood pressure tends to drop.

This is normal and blood pressure will usually return to pre-pregnancy levels after delivery.

3. Lack of certain nutrients

Deficiency of essential vitamins B-12 and folic acid can lead to anemia, which in turn can lead to low blood pressure.

4. Heart problems

Several heart conditions can cause low blood pressure, including a very low heart rate (bradycardia), heart valve problems, heart attack and heart failure.

5. Certain drugs

According to the American Heart Association, a number of medications can cause low blood pressure, including diuretics and other medications that treat hypertension, heart medications such as beta blockers, medications for Parkinson’s disease, tricyclic antidepressants, erectile dysfunction medications, and narcotics and alcohol.

Prescription drugs and other over-the-counter drugs can cause low blood pressure if they are taken together with high blood pressure medications.

6. Endocrine problems

Endocrine problems can cause low blood pressure, including complications with the hormone-producing glands in the body’s endocrine system, particularly an underactive thyroid (hypothyroidism), parathyroid disease, adrenal insufficiency, low blood sugar, and in some cases diabetes.

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7. Severe infection

Severe infection or septic shock can occur when bacteria leave the area of ‚Äč‚Äčorigin of the infection, most often in the lungs, stomach, or urinary tract, and enter the bloodstream.

The bacteria then produce toxins that affect blood vessels, causing a profound and life-threatening drop in blood pressure.

8. Allergic reactions (anaphylaxis)

Anaphylactic shock is a sometimes fatal allergic reaction, which can occur in people who are very sensitive to drugs, such as penicillin, to certain foods such as peanuts or bee stings.

This type of shock is characterized by breathing problems, hives, a swollen throat, and a sudden and dramatic drop in blood pressure.

9. Severe inflammation

According to MedicineNet, severe inflammation of internal organs such as acute pancreatitis can be a cause of low blood pressure.

In acute pancreatitis, fluid leaves the blood vessels to enter the inflamed tissue around the pancreas and abdominal cavity, concentrating the blood and reducing its volume.

10. Moderate or heavy bleeding

This condition can quickly drain a person’s blood, leading to low blood pressure or orthostatic hypotension.

Bleeding may result from trauma, surgical complications, or gastrointestinal disorders such as ulcers, tumors, or diverticulosis.

Sometimes, the bleeding can be very severe and fast. For example, bleeding from a ruptured aortic aneurysm causes shock and rapid death.

11. Nerve-mediated hypotension

Unlike orthostatic hypotension, this disorder causes blood pressure to drop after standing for a long time, leading to symptoms such as dizziness, nausea and fainting.

This condition mainly affects the younger age group and occurs due to miscommunication between the heart and brain.

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Also read: Low Blood Pressure, Should You Worry?

Low blood pressure, when to see a doctor?

It is important to see a doctor to find out the cause of low blood pressure that we experience and find a solution.
PEXELS/PAVEL DANILYUK It is important to see a doctor to find out the cause of low blood pressure that we experience and find a solution.

One low blood pressure reading is not a sign of a serious problem, unless you experience other accompanying symptoms or problems.

If you have consistently low blood pressure readings but feel fine, your doctor will likely only monitor you during routine check-ups.

In fact, the occasional headache or lightheadedness may be a relatively minor problem, for example from mild dehydration from too much sun or a hot tub.

However, it is important to see a doctor if you have symptoms of low blood pressure as it could indicate a more serious problem.

It is helpful to note the symptoms that occur, when they occur and what to do when they occur.

Also read: 7 Myths About High Blood Pressure, Don’t Believe It Easily

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