Leg Pain When Walking? It Could Be Claudication | Dr Andrew Choong
Leg pain when walking is not always caused by arthritis or simply getting older. A cramping, aching or tight feeling in the calf, thigh or buttock that repeatedly appears during walking and improves with rest can be a sign of intermittent claudication, a symptom of reduced blood flow to the leg muscles.
In the video above, I explain three simple questions that can help you describe this pattern. They cannot diagnose the cause of your pain, but they can help you recognise when a vascular assessment may be useful.
Three questions to ask about leg pain when walking
Does it begin after a fairly predictable walking distance? You may notice discomfort after a similar stretch of pavement or on the same hill.
Does it ease when you stop walking? Claudication commonly improves after a few minutes of rest.
Does it return when you start walking again? The same discomfort may recur as your leg muscles work harder.
If this sounds familiar, arrange a medical assessment. The pattern can suggest claudication, but joint, muscle and nerve problems can also cause leg pain. An examination helps distinguish between them.
Why can poor circulation cause this pain?
Walking increases the amount of oxygen your leg muscles need. If arteries supplying the legs are narrowed, blood flow may not increase enough to meet that demand. Stopping reduces the muscles’ oxygen needs, allowing the discomfort to settle.
This narrowing is often caused by atherosclerosis, a build-up of fatty plaque inside artery walls. When it affects the arteries supplying the limbs, it is called peripheral arterial disease (PAD). Not everyone with PAD has the classic walking-and-rest pattern.
Why does claudication matter for heart health?
When claudication is caused by PAD, the assessment also considers your wider cardiovascular health. PAD and coronary artery disease often share the same underlying process, and people with PAD have a higher risk of heart attack and stroke.
Smoking, diabetes, high blood pressure and high cholesterol are relevant risk factors. Reviewing them is part of caring for your circulation, even if your main concern is walking discomfort.
How is claudication assessed?
I would start by asking where the pain occurs, what brings it on, how quickly it settles and whether your walking distance has changed. Your medical history, medicines and risk factors also help guide the assessment.
An examination includes checking your feet, skin and leg pulses. An ankle–brachial pressure index (ABPI), also called ABI, compares blood pressure at the ankles and arms. A duplex ultrasound may be appropriate to assess blood flow and locate narrowing. Further tests depend on the findings; not everyone needs a scan.
Does claudication always need an operation?
No. Treatment often begins with managing cardiovascular risk, stopping smoking where relevant, prescribed medicines and a structured exercise programme suitable for the individual. Medicines may address cholesterol, blood pressure or blood-clotting risk.
For stable claudication, supervised or clinician-supported walking programmes can improve walking ability. The programme should follow assessment and account for other health conditions. New severe pain, pain at rest or a cold, numb foot should not be treated by simply pushing through a walk.
Angioplasty or surgery may be considered when symptoms remain significantly limiting despite treatment, or when circulation is severely compromised.
When should you seek urgent help?
Seek prompt medical assessment for new pain at rest, a foot or leg wound that is not healing, or symptoms that are worsening, particularly if you have diabetes.
A suddenly painful, cold, pale, numb or weak leg or foot needs emergency assessment. Seek emergency care immediately rather than waiting for a clinic appointment.
Vascular assessment in Singapore
If recurring walking pain is limiting your daily activities, contact Andrew Choong Vascular Surgery to discuss an assessment at Mount Elizabeth Novena Specialist Centre, #09-22, 38 Irrawaddy Road, Singapore 329563.
This video follows my introduction to September’s vascular disease awareness series. Recognising a symptom pattern is a useful first step; a clinical assessment establishes what it means for you.
This article provides general education and does not replace an individual medical consultation.