The restless leg syndrome.

The author reviews and provides examples of the restless leg syndrome (Ekbom's syndrome), emphasizing the frequency of the disorder and its distressing symptoms. The syndrome is characterized by a creeping, crawling sensation in the lower legs, usually at night. It is accompanied by an irresistible urge to move the legs, and this movement eventually relieves the symptoms. It is found in 5% of the general population, with a higher incidence in pregnant women and people with anemia, but no vascular, neurological or other abnormalities are found on examination. Patients are treated empirically with vasodilators or intravenous iron. The etiology is unknown.