II. Causes: Psychogenic and lifestyle (80%)
- Sleep disorder (e.g. Insomnia)
- Recovery from surgery (Fatigue may persist 12 weeks even following minor surgery)
- Lifestyle
- Work problems or dissatisfaction
- Home finances and relationships
- Sedentary lifestyle and deconditioning
- Inadequate nutrition
- Inadequate rest or Overtraining
- Mood Disorder
- Eating Disorder
-
Substance Abuse or medications
- Illicit Drug abuse
- Alcohol or Alcohol Abuse
- Tobacco
- Caffeine
- Amphetamines
- Sedative-Hypnotics medications or Tranquilizers
III. Causes: Organic (20%)
- Infectious
- Febrile states
- Tuberculosis
- HIV Infection or AIDS
- Lyme Disease
- Chronic Mononucleosis
- Influenza
- Metabolic disorder
- Hematologic Disorder
- Anemia
- Lymphoma
- Leukemia
- Occult malignancy
- Heavy Metal Toxicity (e.g. Lead Poisoning)
- Renal Disease
-
Liver Disease
- Acute Hepatitis
- Chronic hepatitis
- Cirrhosis
- Rheumatologic Disease
- Gastrointestinal disorder
- Neurologic
- Miscellaneous
IV. References
- Lipken in Dornbrand (1992) Ambulatory Care, p. 5-8
- Goroll (2000) Primary Care Medicine, Lippincott, p. 41
- Rosenthal (2008) Am Fam Physician 78(10): 1173-9 [PubMed]