Blood, hematopoietic organs – immune system (D50-D90).
- Anemia (anemia)
Endocrine, nutritional, and metabolic diseases (E00-E90).
- Adrenopause
- Hypoglycemia (low blood sugar)
- Hypothyroidism (hypothyroidism)
- Overweight (obesity)
Factors influencing health status and leading to health care utilization (Z00-Z99).
- Burnout syndrome
Infectious and parasitic diseases (A00-B99).
- Chronic bacterial infections, unspecified.
- Chronic candidiasis (fungal infection)
- Chronic viral infection, unspecified
Mouth, esophagus (food pipe), stomach, and intestines (K00-K67; K90-K93).
- Irritable bowel syndrome (irritable colon).
Musculoskeletal system and connective tissue (M00-M99).
- Fibromyalgia (fibromyalgia syndrome) – syndrome that can lead to chronic pain (at least 3 months) in multiple body regions.
Neoplasms – tumor diseases (C00-D48).
- Brain tumors, unspecified
Psyche – nervous system (F00-F99; G00-G99).
- Anorexia nervosa (anorexia nervosa)
- Depression
- Encephalomyelitis – inflammation of the brain (encephalitis) and spinal cord (myelitis).
- Fatigue syndrome (after tumor disease).
- Hypochondria – mental illness in which the affected person suffers from great fears of having a serious illness, but which can not be proven.
- Psychoses – mental disorder with temporary loss of reality.
- Sleep apnea syndrome – cessation of breathing during sleep, leading to daytime fatigue to the point of falling asleep.
- Overwork syndrome
Medication
- See “Causes” under medications
Environmental pollution – intoxications (poisoning).
- Alcohol abuse
- Drug abuse
In addition, see differential diagnoses under the symptom “fatigue“.
