Chronic fatigue

Chronic fatigue may refer to:
 * Chronic fatigue, a long-term state of physical or mental exhaustion, a symptom of many chronic illnesses and of Idiopathic chronic fatigue
 * Myalgic encephalomyelitis/chronic fatigue syndrome, a discrete chronic medical condition characterized by post-exertional malaise, symptoms of profound intensity including fatigue, pain, and cognitive impairment and usually caused or precipitated by a systemic infection.