What Causes Your Blood Pressure to Suddenly Get High?

Reviewed on 5/14/2021
Hypertension or high blood pressure (high BP) is a medical condition
Hypertension or high blood pressure (high BP) is a medical condition

Hypertension or high blood pressure (high BP) is a medical condition where the pressure in the arteries is persistently elevated. The heart pumps blood into the arteries, and it is circulated to all parts of the body. Hypertension develops when the heart constantly needs to exert higher force to deliver the blood to the organs through the arteries. Since a hypertensive heart must work harder to deliver blood, hypertension can increase the risk of cardiovascular disease, heart attack and heart failure. Also, the blood vessels in people with hypertension are narrower, putting them at risk of stroke, kidney disease and vision loss.

There are many reasons for high blood pressure. Some possible causes include caffeine, acute stress or anxiety, certain medications (such as nonsteroidal anti-inflammatory drugs), combinations of medications, recreational drugs, sudden or acute pain, dehydration and white coat effect (fear of being in a hospital or doctor’s clinic).

What causes hypertension?

The causes depend on the type of hypertension: primary and secondary. Sometimes the blood pressure may suddenly increase, with or without any history of hypertension. These sudden spikes typically last for a short time and are called sudden high blood pressure or hypertensive urgency. The blood pressure may often return to normal after a while.

Primary or essential hypertension

In most adults, there is no identifiable cause for hypertension. Primary or essential hypertension is not caused by a disease or health condition.

Primary hypertension can result due to multiple factors:

Secondary hypertension

In some people, hypertension is caused by an underlying health condition. This is called secondary hypertension and tends to appear suddenly. Secondary hypertension causes higher blood pressure than primary hypertension.

Secondary hypertension is caused by specific conditions and their complications, such as

Risk factors of hypertension

Several factors increase the risk of hypertension:

Symptoms of hypertension

Hypertension is generally considered a silent killer. Most people with hypertension do not have any symptoms.

It may take many years for the condition to become severe and for symptoms to appear. Many times, these symptoms may be attributed to other issues. The best way to know the blood pressure levels is through regular checkups.

Symptoms of severe hypertension include:

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References
Alexander MR. Hypertension. Medscape. https://emedicine.medscape.com/article/241381-overview

Medscape. New Hypertension Guidelines: JNC 7. Journal Watch. 2003;2(5). https://www.medscape.com/viewarticle/457298

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