Causes of Restless Legs Syndrome

In most cases, the cause of RLS is not known. For about half of all RLS cases, there is a family history of the condition. People who have RLS in the family tend to be younger when symptoms start and develop symptoms slowly.

RLS is thought to be related to the following factors or conditions:

• Some women get RLS during pregnancy, especially in the last 3 months. But the symptoms usually go away about 4 weeks after having the baby.

• People with anemia (low iron levels) may be more likely to get RLS. Once low iron levels or anemia is corrected, symptoms can lessen.

• Chronic diseases such as kidney failure, diabetes, Parkinson's disease, and peripheral neuropathy (loss of feeling or numbness in the hands and feet) may be linked to RLS.