What Causes Restless Leg Syndrome (RLS)?
In most cases of restless leg syndrome, no cause can be found. Primary RLS refers to this condition when no cause can be found. However, studies have shown that primary restless leg syndrome tends to run in families, which may suggest that there may be a genetic link that increases the chance of developing the condition. Secondary RLS is RLS that is caused by an underlying condition or as a side effect from certain medications.
