BP of 90/60 — Warning Signs of Low Blood Pressure You Must Not Ignore

In India, a great deal of medical attention goes to high blood pressure — and rightly so. But low blood pressure (hypotension) causes significant suffering that is often dismissed with "low BP is good for the heart." While chronically low BP in a fit, asymptomatic person is indeed benign, symptomatic low BP is a real medical problem that needs proper diagnosis and management.

When Is Low BP a Problem?

BP of 90/60 mmHg is considered low. Whether it matters depends entirely on whether it causes symptoms:

• Asymptomatic 90/60: In a young, healthy, fit person with no dizziness, no fatigue, and no fainting — low BP is generally benign and does not need treatment
• Symptomatic low BP: If 90/60 is accompanied by symptoms — this needs investigation and management

Symptoms of Low Blood Pressure

• Dizziness or lightheadedness — especially on standing up (orthostatic hypotension)
• Fainting or near-fainting (syncope)
• Blurred vision on standing
• Fatigue and weakness out of proportion to activity
• Difficulty concentrating — "brain fog"
• Nausea
• Cold, pale, clammy skin
• Rapid, shallow breathing

Causes of Symptomatic Low BP

Dehydration: The most common cause in Hyderabad's hot climate — inadequate fluid intake reduces blood volume and drops BP.

Orthostatic hypotension: A drop of ≥20 mmHg systolic when standing from sitting or lying — causes characteristic dizziness on standing. Common causes include diabetes (autonomic neuropathy), Parkinson's disease, certain blood pressure medications, and prolonged bed rest.

Medications: Antihypertensives, diuretics, antidepressants, and alpha-blockers can all cause low BP as a side effect.

Cardiac causes: Heart failure, severe bradycardia (slow heart rate), or heart valve problems can reduce the heart's output and lower BP.

Endocrine causes: Hypothyroidism, adrenal insufficiency (Addison's disease) — both treatable once identified.

Anemia: Reduced haemoglobin = reduced oxygen-carrying capacity and reduced BP.

Neurally mediated syncope (vasovagal): Triggered by prolonged standing, heat, pain, or emotional stress — sudden drop in BP and heart rate causing fainting.

Simple Measures That Help

• Drink 2.5–3 litres of water daily — more in summer
• Increase salt intake moderately (unless contraindicated by kidney disease)
• Rise slowly from lying or sitting — pause at the edge of the bed before standing
• Avoid prolonged standing in hot environments
• Eat smaller, more frequent meals (large meals divert blood to digestion)
• Wear compression stockings if orthostatic hypotension is significant

For symptomatic low BP evaluation and management: Sri Anand CNC, Chanda Nagar, Hyderabad. Call +91 90633 66983.