Restless Leg Syndrome


People with restless legs syndrome have uncomfortable sensations in their legs (and sometimes arms or other parts of the body) and an irresistible urge to move their legs to relieve the sensations. The sensations are difficult to describe: they are an uncomfortable, “itchy,” “pins and needles,” or “creepy crawly” feeling in the legs. The sensations are usually worse at rest, especially when lying or sitting. The sensations can lead to sleep deprivation and stress.

The severity of RLS symptoms ranges from mild to intolerable. Symptoms can come and go and severity can also vary. The symptoms are generally worse in the evening and at night and less severe in the morning. For some people, symptoms may cause severe nightly sleep disruption that can significantly impair a person’s quality of life.

Who Gets Restless Legs Syndrome?

Restless legs syndrome may affect up to 10% of the U.S. population. It affects both sexes but is more common in women and may begin at any age, even in young children. Most people who are affected severely are middle-aged or older.

RLS is often unrecognized or misdiagnosed. In many people it is not diagnosed until 10 to 20 years after symptoms begin. Once correctly diagnosed, RLS can often be treated successfully.

Causes of Restless Legs Syndrome

In most cases, doctors do not know the cause of restless leg syndrome; however, they suspect that genes play a role. About half of people with RLS also have a family member with the condition.



Medications. Some types of medications, including antinausea drugs, antipsychotic drugs, some antidepressants, and cold and allergy medications containing antihistamines may worsen symptoms.



Diagnosis of Restless Legs Syndrome

There is no medical test to diagnose restless legs syndrome; however, doctors may use blood tests and other exams to rule out other conditions. The diagnosis of restless legs syndrome is based on a patient’s symptoms and answers to questions concerning family history of similar symptoms, medication use, the presence of other symptoms or medical conditions, or problems with daytime sleepiness.