Restless legs syndrome

Also called Willis-Ekbom disease or RLS

Restless legs syndrome is a common condition that causes an overwhelming urge to move the legs, often with an unpleasant feeling in the legs. Symptoms are usually worse in the evening and at night and ease with movement. It can be linked to low iron, pregnancy, kidney disease and some medicines, but often there is no clear cause.

Last updated Nov 9, 2026

What it is

Mild symptoms may improve with regular exercise, good sleep habits and cutting down on caffeine, alcohol and smoking.

Treating low iron can help. For more severe symptoms, medicines may be offered.

Common signs

  • An urge to move the legs
  • Crawling, tingling or burning feelings in the legs
  • Symptoms worse in the evening or at rest
  • Relief when moving
  • Jerking legs during sleep
  • Tiredness during the day

How it is usually diagnosed

  • Questions about symptoms and sleep
  • Blood tests, including iron levels

Records worth keeping

Keeping these together makes each appointment easier, especially when you see a new doctor:

  • Blood test results, including ferritin
  • GP or neurology notes
  • Medicine lists
  • A sleep diary

Questions to ask your doctor

  • Could low iron or a medicine be causing this?
  • What can I try before medicines?
  • What side effects should I watch for?

When to get help right away

Call 112 or go to the nearest emergency department if you have:

  • Sudden weakness or numbness in the legs, or loss of bladder or bowel control: call 112

This page is general information. It is not a diagnosis and does not replace a doctor who knows your history. Medfold keeps your records organised; it does not interpret them.

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