← Back to list

Section: General

Fatigue

Also known as: Tiredness, Exhaustion

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

Overview

Fatigue can follow poor sleep, anemia, infection, stress, or chronic disease. It is not one diagnosis. Sudden fatigue or fatigue with weight loss needs evaluation.

Possible causes

  • Lack of sleep
  • Anemia
  • Infection (e.g. malaria)
  • Stress
  • Diabetes or thyroid issues

When to see a doctor

See a clinic if fatigue lasts weeks or comes with fever, weight loss, or breathing trouble.

Related conditions

Sources

This guide is put together from these references.