Quick Answer
An irresistible urge to move your legs at night — RLS is a real neurological disorder, not just discomfort.
Medically reviewed by Dr. Jitendra Prasad Yadav • NMC 8029 • Kathmandu Neurology Clinic & Cognitive Center
Restless legs syndrome (RLS), also called Willis-Ekbom disease, is a neurological sensorimotor disorder characterized by an irresistible urge to move the legs, accompanied by uncomfortable sensations described as crawling, creeping, pulling, or itching. Symptoms occur or worsen during rest and in the evening or night, and are temporarily relieved by movement.
RLS is severely underdiagnosed because many dismiss it as "just being restless." But it is a real neurological condition that significantly impairs sleep quality, daytime function, and quality of life.
What RLS feels like
The hallmark features (URGE criteria):
- Urge to move: irresistible need to move legs, with uncomfortable sensations.
- Restlessness: symptoms triggered or worsened by rest or inactivity.
- Getting up relieves: movement provides temporary relief.
- Evening/night worsening: symptoms worse in evening and at night.
Sensations are described as crawling, creeping, pulling, itching, burning, or "pins and needles" deep in the legs. They can also affect the arms in severe cases.
Causes and risk factors
Primary (idiopathic)
- Genetics: family history in ~40-60% of cases.
- Dopamine dysfunction: RLS is dopamine-related; brain iron deficiency affects dopamine production.
- Pregnancy: common, usually resolving after delivery.
Secondary causes
- Iron deficiency: the most common secondary cause; ferritin should be checked.
- Kidney disease: especially dialysis patients.
- Peripheral neuropathy: can coexist with or cause RLS.
- Medications: antihistamines, antidepressants (SSRIs/SNRIs), anti-nausea drugs, some antipsychotics.
How RLS affects sleep and life
Symptoms peak at night, causing difficulty falling asleep, frequent awakenings, periodic limb movements (~80% of patients), daytime fatigue, depression, and reduced quality of life.
Diagnosis
Diagnosis is clinical based on URGE criteria plus exclusion of mimics. Evaluation includes detailed history, medication review, iron studies (ferritin), kidney function, neurological examination, and sleep study when PLMS or apnea is suspected.
Treatment
Addressing underlying causes
- Iron supplementation if ferritin is low.
- Medication review for RLS-worsening drugs.
- Treating neuropathy or kidney disease when present.
Non-pharmacological
- Regular exercise; sleep hygiene; evening warm bath and stretching; avoid caffeine, alcohol, nicotine in evening; compression stockings; counter-stimulation (vibration, massage).
Medications
- Alpha-2-delta ligands (gabapentin, pregabalin): increasingly preferred first-line.
- Dopamine agonists (pramipexole, ropinirole): effective but can cause augmentation with long-term use.
- Opioids for severe refractory cases; IV iron for low ferritin unresponsive to oral.
When to seek evaluation
- Irresistible urge to move legs at night or during rest.
- Symptoms relieved by movement but returning when resting.
- Evening/night worsening of leg discomfort.
- Poor sleep with daytime fatigue affecting function.
RLS is a treatable neurological disorder. If you have restless legs at night, a neurological evaluation can identify whether iron deficiency, medication effects, or primary RLS is responsible.
This article is educational and does not replace individual medical advice.
Frequently asked questions
Answers reviewed by Dr. Jitendra Prasad Yadav • MBBS, MD (Internal Medicine), FICN (Neurology), FCNV, FIHM • NMC 8029
Yes — sleep deprivation and apnea frequently increase migraine/chronic headache frequency.
Sleep deprivation lowers seizure threshold in susceptible individuals.
Supplements only help when a deficiency is present; underlying cause-directed care is needed.
If the underlying cause is corrected early (e.g., improving glucose control, treating vitamin deficiency), improvement may occur. Long-standing neuropathy is often not fully reversible.
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References & Review
Reviewed by Dr. Jitendra Prasad Yadav • Last reviewed: 2026-11-10
- International Classification of Headache Disorders, 3rd edition (ICHD-3).
- Harrison's Principles of Internal Medicine — Neurology sections.
- American Academy of Neurology guidelines for selected conditions (where applicable).
Content is educational and aligns with standard medical references; individual evaluation may vary. External links provide context and do not imply endorsement.