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Section: General

Body weakness

Also known as: General weakness, Asthenia

Body weakness symptom guide: what it can mean, possible causes, and when to seek care. Educational only.

Overview

Body weakness can follow infections, anemia, poor sleep, or chronic illness. Sometimes it signals nutrient deficiency. Sudden one-sided weakness is an emergency.

Possible causes

  • Infection or fever
  • Anemia
  • Lack of sleep
  • Diabetes or blood pressure issues
  • Poor nutrition

When to see a doctor

See a clinic if weakness is sudden, one-sided, or lasts weeks without a clear reason.

Related conditions

Sources

This guide is put together from these references.