Restless Leg Syndrome (RLS), a disorder in which an irresistible urge to move the legs may seriously affect a persons quality of life and the ability to sleep is common among pregnant women. In a study of more than 100 pregnant women, 26% reported symptoms of RLS. Although the prevalence is high, the cause of RLS during pregnancy is not well understood. According to a recent study of 146 pregnant women it was found that pregnant women with RLS had lower Hemoglobin levels, more medical problems, night cramps and excessive day time sleepiness and that they took less Iron and vitamin supplements when compared to pregnant women without RLS. The results suggest that a deficiency in blood Iron and low hemoglobin levels may be the cause of RLS in pregnant women.
Mov Disord 2007 Apr.15; 22 (5);627-31