Symptoms

Low blood pressure is generally not worrisome unless you have symptoms such as lightheadedness, dizziness, or fainting.

Depending on what is causing your low blood pressure, other potential symptoms may include:

• Nausea
• Blurry vision
• Cool, clammy skin
• Fatigue
• Rapid breathing
• Thirst

Causes

Low blood pressure, called hypotension, is defined as a systolic blood pressure that is less than 90 mmHg. It has several potential causes, such as:

• Pregnancy
• Underlying heart conditions
• Certain medications
• Dehydration
• Shock from an infection (septic shock) or allergic reaction (anaphylactic shock)

Treatments

The treatments for low blood pressure involve addressing the underlying cause.

For instance, if you’re experiencing low blood pressure from dehydration, the treatment would be to replace fluids and electrolytes, minerals that play a key role in keeping your body healthy.