Why Do My Legs Hurt While Walking? Causes & When to Worry

Leg pain that appears at a predictable walking distance and eases with rest is rarely 'just age' — it's often the earliest sign of peripheral artery disease.
If your calves, thighs or buttocks ache after walking a fixed distance — and the pain settles within a few minutes of standing still — your legs may be signalling a circulation problem, not a muscle or joint issue. This pattern, called intermittent claudication, is the classic early symptom of peripheral artery disease (PAD).
Common causes of leg pain on walking
- Peripheral artery disease (PAD) — narrowed leg arteries reduce blood supply to working muscles.
- Lumbar spinal stenosis — nerve compression in the lower back, often eased by bending forward.
- Chronic venous insufficiency — heaviness and aching that worsens through the day.
- Osteoarthritis of the hip or knee — pain at the joint, worse with weight-bearing.
- Muscle cramps from dehydration, electrolyte imbalance or statin therapy.
Red flags that need a vascular opinion
- Pain appears at the same walking distance every time and disappears with rest.
- Cold, pale or bluish feet — especially on one side.
- Non-healing cuts, ulcers or blackened toes.
- Night-time leg pain that improves when you dangle the leg over the bed.
- Diabetes, smoking, hypertension or known heart disease.
How vascular surgeons diagnose the cause
A 10-minute Ankle-Brachial Index (ABI) test, a duplex ultrasound and — when needed — a CT angiogram can precisely locate any blockage. Early diagnosis matters: untreated PAD raises the risk of heart attack, stroke and limb loss, but most cases respond beautifully to medication, supervised exercise and, if needed, day-care angioplasty.
What you can do today
Stop smoking, walk to the point of pain twice daily, control blood sugar and cholesterol, and book a vascular assessment if walking distance is shrinking week-on-week. The earlier the artery is treated, the better the long-term function.

