Symptom
Lethargy
A state of prolonged drowsiness, decreased mental alertness, and an unusual lack of energy. Possible causes are endocrine thyroid disease, anemia, sleep apnea, infections, mental health (depression), neurological conditions (brain injury), kidney/liver failure (toxin buildup), diabetes, autoimmune disease, medications (sedatives, antidepressants, β-blockers, alcohol), dehydration, and vitamin deficiency.
Also known as: Drowsiness, Somnolence, Torpor, Stupor, Lassitude, Languor, Hebetude, Fatigue, Exhaustion, Apathy
Referencing diagnoses
- Acute liver failure
- Adrenal insufficiency
- Alcoholic liver disease
- Anemia
- Discitis
- Encephalitis
- Epidural hematoma
- Erythema infectiosum
- Hand-Foot-and-Mouth disease
- Hepatic encephalopathy
- Hydrocephalus
- Hypermagnesemia
- Hypernatremia
- Hyperparathyroidism
- Hypomagnesemia
- Hyponatremia
- Hypopituitarism
- Hypothyroidism
- Hypovolemia
- Intestinal malrotation
- Intracerebral hemorrhage
- Intussusception
- Kawasaki disease
- Lead toxicity
- Lung cancer
- Metabolic acidosis
- Migraine
- Necrotizing enterocolitis
- Neuroblastoma
- Nonalcoholic fatty liver disease
- Portal hypertension
- Retropharyngeal abscess
- Schistosomiasis
- Subdural hematoma
- Syndrome of inappropriate antidiuretic hormone secretion
- Thyrotoxicosis
Note: Lists existing diagnoses in Diagnotize only.