Restless legs syndrome (RLS) is a neurologic disorder. It is characterized by:
- Unpleasant sensations in the legs
- An irresistible urge to move the legs
The cause of primary RLS is unknown. RLS may have some genetic component. In some cases, it may be caused by other conditions or certain medications. This is called secondary RLS.
Many people with RLS also have periodic limb movement disorder (PLMD). This is a related motor disorder characterized by:
- Involuntary, repetitive, jerking movements
- Interrupted sleep because of periodic leg movements
Last reviewedMay 2014by Rimas Lukas, MD
Please be aware that this information is provided to supplement the care provided by your physician. It is neither intended nor implied to be a substitute for professional medical advice. CALL YOUR HEALTHCARE PROVIDER IMMEDIATELY IF YOU THINK YOU MAY HAVE A MEDICAL EMERGENCY. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with any questions you may have regarding a medical condition.