Symptom

Fatigue

A persistent sense of reduced capacity for physical or mental work, characterized by decreased energy, weakness, or exhaustion that is not fully relieved by ordinary rest.

Causes

  • Systemic conditions

    • Hypothyroidism

    • Hyperthyroidism

    • Diabetes mellitus

    • Fibromyalgia

    • Chronic fatigue syndrome

    • Rheumatoid arthritis

    • Systemic lupus erythematosus (SLE)

    • Heart disease

    • Chronic obstructive pulmonary disease (COPD)

    • Kidney disease

    • Liver disease

    • Cancer

    • COVID-19

    • Infectious mononucleosis

  • Nutritional and hematological causes

    • Iron deficiency anemia

    • Vitamin D deficiency

    • Other nutritional deficiencies

  • Sleep-related disorders

    • Obstructive sleep apnea syndrome (OSAS)

    • Insomnia

    • Chronic sleep deprivation

  • Medications and substances

    • Sedatives

    • Antidepressants

    • Other medications causing central nervous system suppression

  • Psychological and lifestyle factors

    • Prolonged physical or mental exertion

    • Chronic stress

    • Excessive caffeine use

    • Physical inactivity

    • Depression

    • Anxiety disorders

    • Bipolar disorder

    • Grief

  • Other causes

    • Post-infectious fatigue

    • Chronic inflammatory states

Also known as: Asthenia, Burnout, Exhaustion, Lassitude, Lethargy, Malaise, Tiredness, Weariness

Referencing diagnoses

Note: Lists existing diagnoses in Diagnotize only.