Low Blood Pressure

Overview

Low blood pressure (hypotension) means blood pressure readings fall below the usual range. For many people this is harmless, but for others it can cause symptoms, particularly when standing up quickly.

Symptoms

Dizziness or light-headedness (especially on standing), fainting, blurred vision, fatigue, and difficulty concentrating.

Risk Factors

Dehydration, certain medications (blood pressure drugs, some antidepressants), prolonged bed rest, pregnancy, heart conditions, endocrine problems, and older age.

Common Blood Tests

There's no single blood test for low blood pressure itself, but doctors may check for underlying causes such as anaemia, thyroid problems, or blood sugar issues depending on symptoms.

Lifestyle Information

Staying well hydrated, standing up slowly, increasing salt intake if advised by a doctor, and avoiding prolonged standing in hot conditions can help manage symptomatic low blood pressure.

When to seek medical advice

See a doctor if low readings come with fainting, chest pain, severe dizziness, or shortness of breath, or if symptoms are affecting daily life.

Sources