Low blood pressure might seem desirable, and for some people, it causes no problems. However, for many people, abnormally low blood pressure (hypotension) can cause dizziness and fainting. In severe cases, low blood pressure can be life-threatening.
A blood pressure reading lower than 90 millimeters of mercury (mm Hg) for the top number (systolic) or 60 mm Hg for the bottom number (diastolic) is generally considered low blood pressure.
The causes of low blood pressure can range from dehydration to serious medical disorders. It's important to find out what's causing your low blood pressure so that it can be treated.
For some people, low blood pressure signals an underlying problem, especially when it drops suddenly or is accompanied by signs and symptoms such as:
• Dizziness or lightheadedness
• Fainting
• Blurred or fading vision
• Nausea
• Fatigue
• Lack of concentration
Signs & symptoms include:
• Confusion, especially in older people
• Cold, clammy, pale skin
• Rapid, shallow breathing
• Weak and rapid pulse
Courtesy:Mayoclinic
