Nighttime leg discomfort could signal restless legs syndrome

An unexplained urge to move the legs at night, accompanied by burning, itching, tingling or a crawling sensation, should not always be dismissed as ordinary discomfort. Such symptoms may indicate restless legs syndrome (RLS), a neurological movement disorder that can significantly disrupt sleep.

Restless Legs Awareness Day is observed on September 23 each year to raise awareness of the condition. RLS typically occurs when a person is resting, particularly in the evening or at night. Moving the legs often provides temporary relief, while remaining still can make the discomfort worse.

Studies have estimated that RLS affects around 7% to 10% of people in the United States, although many cases may go undiagnosed because the symptoms are mistaken for routine fatigue or discomfort.

The exact cause of RLS remains unclear. Research has linked the condition to dopamine activity in the brain, iron levels and certain underlying health problems. Some medications may also trigger or worsen symptoms. Genetics may play a role as well.

People with RLS may experience burning, itching, tingling or a sensation similar to insects crawling under the skin. Some may also develop repeated or involuntary leg movements. Symptoms can occasionally affect the arms, although the legs are most commonly involved.

The condition may be more common among pregnant women and people undergoing regular dialysis. A family history can also increase the risk, although having an affected relative does not necessarily mean another family member will develop the condition.

Moderate physical activity, stretching, yoga, swimming and cycling may help some people manage symptoms. Anyone experiencing persistent nighttime discomfort or sleep disruption should consult a doctor rather than self-medicating. Appropriate evaluation can help identify possible underlying causes and determine suitable treatment to control symptoms.