EN
The term Chronic Fatigue Syndrome refers to a complex of symptoms, among which only the presence of profound fatigue of 6 months or more duration is essential for the diagnosis. Presented article reviews current hypothesis, diagnostic criteria and methods of treatment used in this disorder. The cause of chronic fatigue syndrome remains unknown. No form of treatment alters the course of disease. Rest accompanied by program of gentle exercise helps recovery. Pharmacological treatment helps to alleviate the symptoms. The prognosis varies in each case. Recovery takes from one to 10 years.