Restless left leg at night: what to know

Restless legs commonly creates an urge to move with crawling, pulling, tingling or aching feelings that appear during rest and ease briefly with movement. It often becomes more noticeable in the evening. Symptoms may affect one leg or both, and may change sides over time. A consistently one-sided complaint can also overlap with nerve irritation, circulation problems, muscle strain or medication effects. Iron deficiency anaemia, chronic kidney disease and peripheral neuropathy are conditions a clinician may consider, but the symptom alone does not identify a diagnosis.

Keep a simple record of when the sensation begins, whether walking relieves it, and any cramps, numbness or swelling. Gentle stretching, a warm shower, massage and a short walk may settle symptoms. Keep regular sleep and wake times, and review caffeine, nicotine, alcohol and medicines with a clinician because some can worsen evening symptoms. Do not start iron supplementation unless testing or medical advice supports it; excess iron can be harmful.

Arrange a medical review if the problem persists, repeatedly interrupts sleep, is becoming more intense, or stays confined to one leg. Seek urgent help for sudden swelling, warmth, redness or severe pain in the leg, or for chest pain or breathlessness. New weakness, loss of bladder or bowel control, or rapidly spreading numbness also needs urgent assessment.

Could this fit restless legs, or do the one-sided features suggest a nerve, muscle or circulation issue? Should I have blood tests for iron levels or other causes? Could any of my medicines be contributing, and what treatment is suitable if sleep remains disrupted?