Intermittent Claudication
Reviewed by Andrew Schox, BSc(Hons) PGradDipPod MPod, October 2026
Intermittent claudication is cramp-like pain, aching or tiredness in your leg muscles, usually the calf, that walking brings on and a few minutes of rest eases. It is most often caused by peripheral arterial disease (PAD), where fatty deposits narrow the arteries in your legs. It becomes more common with age, and only about one-third of people with PAD get this typical pattern. Most people don't face a threat to the leg. Stopping smoking, regular structured exercise and treating blood pressure, cholesterol and diabetes usually improve how far you can walk.
What is it?
Intermittent claudication is pain, aching, cramping or tiredness in the muscles of your leg. It usually affects the calf. It comes on when you walk or exercise and eases when you rest.
The usual pattern is that you walk a certain distance, then get a cramping pain. After a few minutes of rest the muscle recovers, and you can walk about the same distance again. The pain can also be felt in the feet, thighs or buttocks. It often affects both legs, though one may be worse, and it usually comes on gradually.
Claudication is the most common symptom of peripheral arterial disease (PAD), a condition of the arteries that carry blood to your legs. It is a symptom, not a disease in itself.
What can cause it?
The main cause is PAD. Over time, fatty deposits (called plaque) build up in the walls of the leg arteries. This is called atherosclerosis. The narrowed arteries can't deliver the extra blood your leg muscles need when you walk, so the muscles hurt until you rest.
The calf is the most common place for pain, because the artery most often narrowed in the leg is the one running down the thigh. If the narrowing is higher up, in the arteries of the belly or pelvis, you may feel pain in the thigh or buttock instead.
Leg pain with walking has other causes too, including pressure on nerves in the spine. Some clues can help tell them apart. Calf pain that eases just by standing still points more towards the blood vessels. A pattern alone can't settle it, though, so you need an assessment and tests.
Who gets it?
PAD becomes more common with age. About 5 per cent of people aged 45 to 49 have it, rising to about 18 per cent of those aged 85 to 89. Women and men are affected at similar rates.
Claudication is less common than PAD. Only about one-third of people with PAD get typical claudication. Many have other leg symptoms on walking that don't fit the classic pattern. Claudication appears to be more common in men.
The main risk factors are smoking, diabetes, high blood pressure and high cholesterol. Smoking is the strongest. Older age and existing heart or blood vessel disease also raise your risk.
How is the cause found?
Assessment starts with your story. Your practitioner will ask where the pain is, what it feels like, what brings it on, how far you can walk, what eases it and how it has changed. They will also ask about smoking, diabetes, blood pressure and cholesterol.
Next they will examine your legs. They check the pulses in your legs and feet, and the colour and temperature of your skin.
The key test is the ankle-brachial index. It is a simple, painless test that compares the blood pressure in your arm with the pressure in your ankle. If you have diabetes or kidney disease, the artery walls can be stiff and hardened, and the ankle test can be unreliable. Your practitioner may then check the blood pressure in your toes instead. Tell them about any warning signs (listed below) even if a test result looks normal.
Treatment
Most people are managed without an operation. Claudication doesn't threaten the leg in most people, so the risks of an operation often outweigh the benefits. Care is built around education, controlling your risk factors, medicines and structured exercise.
Looking after it at home
Stop smoking. This is a strongly recommended part of care. Ask your GP for support to quit.
Keep active in a structured way. Exercise programmes improve walking distance. On average, people who followed one could walk about 82 m further before the pain started, and about 120 m further in total, than people who didn't exercise. These results come mostly from people fit for exercise. Your practitioner can advise what suits you if you have other health conditions or limited stamina.
If you exercise on your own at home, nobody is checking your heart rate or blood pressure. Your GP may suggest a heart check first, because heart symptoms can show up as you become able to do more. If you have pain at rest, a foot sore or ulcer, or a recent procedure on your leg arteries, check with your doctor before starting any exercise.
If you get new or worse chest pain, dizziness, palpitations or breathlessness while exercising, or you feel unwell or injured, stop. Speak to your GP or claudication team before you start again.
Treatment from your podiatrist
Your podiatrist can look at your legs and feet, check for warning signs such as wounds, and arrange an urgent referral to a vascular specialist (a doctor who treats blood vessels) when it is needed. They can also help you keep your feet healthy while you build up your walking.
Your GP or vascular team will usually lead the rest of your care. Ask whether a supervised or structured exercise programme is available near you. Supervised programmes have the best results. After three months, people in supervised programmes could walk about 120 m further than those doing home-based exercise, and about 210 m further than those who were only given walking advice. Researchers haven't shown for certain how much that difference matters in daily life. Home-based programmes that are structured are still a good option if a supervised one isn't available.
Guidelines also strongly recommend medicines to lower cholesterol and medicines that reduce the risk of clots. Your doctor will decide if these are right for you. Don't start or stop them without medical advice.
Other options
If you have tried exercise and managing your risk factors and your walking still limits your daily life, ask about seeing a vascular specialist. For example, you may get pain after less than 100 metres. You need to be medically fit and willing to consider a procedure to restore blood flow (called revascularisation). Your vascular team can explain the risks and benefits compared with carrying on with exercise and medicines.
Will it get better?
For most people, yes, it can improve. Losing weight if you need to, exercising regularly and stopping smoking usually increase the distance you can walk before the pain starts.
It is also a sign to look after your whole body. If your leg arteries are narrowed, the arteries to your heart and brain are likely to be narrowed too, so heart attack and stroke are more likely. PAD can also lead to pain at rest, wounds that won't heal, gangrene (tissue death) and, in some people, amputation. These problems are the reason the warning signs below matter.
Preventing it
The best protection is to look after your arteries. That means not smoking, and keeping blood pressure, cholesterol and diabetes under control with your GP. Stay active, and keep up a structured exercise routine.
Review your overall heart and blood vessel risk with your GP regularly, even if your walking improves. These steps lower your risk and protect your heart as well as your legs, but they can't promise that symptoms won't return.
When to see a podiatrist
Book an appointment if
You keep getting leg pain when you walk that goes away with rest. Don't put it down to ageing or an ordinary cramp. See your podiatrist or GP soon to have it checked. Also book in if you already have claudication and, despite exercise and looking after your risk factors, it still limits your daily life. Ask about seeing a vascular specialist.
Seek prompt assessment if
Call your local emergency number if your leg or foot suddenly becomes painful and pale, cold or numb, or if you suddenly can't move your leg or foot. Call your local emergency number if you get chest pain or sudden breathlessness while exercising. If you get dizziness, palpitations or milder breathlessness, stop exercising and speak to your GP before you start again. See your GP or another doctor today if you have pain in your foot or toes at rest, often worse at night and eased by hanging your leg down, or a sore or wound below the knee that hasn't healed in 2 weeks, or black or dead-looking skin on your foot or toes. These can mean the blood supply to the leg is seriously reduced. If your GP can't see you today, go to an urgent care clinic or an after-hours GP. Your podiatrist can also arrange an urgent referral to a vascular specialist.
Frequently asked questions
Is claudication the same as peripheral arterial disease?
No. Peripheral arterial disease (PAD) is the condition: narrowed arteries in the legs. Claudication is one symptom it can cause, and the most common one. You can have PAD with other leg symptoms, or with no symptoms at all.
What should I tell my practitioner about my leg pain?
Note which muscles hurt, how far you can walk before the pain starts, and how long rest takes to ease it. Also say whether standing still or sitting helps, and whether it's getting worse. These details help your practitioner work out the cause.
Is it enough to just go for more walks?
General advice to "go out and walk" hasn't been shown to work well. A structured programme, ideally supervised, gets better results. If it's the only option you have, ask your GP or vascular team for a plan that sets out what to do rather than just walking more.