Can iron deficiency anaemia cause restless legs syndrome?

Restless legs syndrome commonly causes crawling, pulling, tingling, or aching sensations with an irresistible urge to move. Symptoms tend to appear during rest, become more noticeable in the evening or at night, and ease temporarily with movement. Iron is involved in brain pathways that help control movement, so low iron stores may contribute even when the blood count is not clearly low. Other medicines and health conditions can also cause similar symptoms; restless legs syndrome is not proof of anaemia.

Arrange an assessment rather than taking iron without testing. A clinician may check a full blood count and iron stores, then look for blood loss, dietary gaps, or absorption problems if results are low. Keep a note of when symptoms occur, what they feel like, and whether movement helps. Reduce caffeine and nicotine later in the day, review medicines with a clinician, and keep regular sleep and activity routines.

Seek medical advice when leg sensations repeatedly disturb sleep, interfere with sitting or travel, or come with tiredness, breathlessness, palpitations, or unusual bleeding. Seek urgent care for severe breathlessness, chest pain, fainting, or heavy bleeding. A clinician can distinguish restless legs syndrome from cramps, nerve symptoms, circulation problems, or another sleep disorder.

Ask whether iron studies are appropriate, what could be causing low iron, whether a medicine is worsening symptoms, and which treatment is safe for your situation.