Restless legs syndrome (RLS) is a neurological disorder in which a person experiences uncomfortable sensations in the legs and feels an uncontrollable urge to move the legs in order to relieve their discomfort. It is also referred to as a movement disorder and may be transient or chronic. This is usually experienced while the person is at rest and it tends to get worse in the evenings and at night.
Uncomfortable sensations that are typically described by patients include creeping sensations, pins-and-needles, itching, tingling or even pain. As many as 80% of those with RLS experience an uncontrollable twitching of the legs during sleep. As a result of this patients lose sleep and can become irritable and exhausted over time. This disorder can affect anyone of any age, including children, but it is more common among women.