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Friday, October 30, 2026Oct 30

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Ask a Doctor: What could be causing the pain in my legs when walking?

Medical doctor  with a stethoscope around his neck  holding
Medical doctor with a stethoscope around his neck holding Medical doctor with a stethoscope around his neck holding
photo Dr. Chris LeSar

Q: Over the last few months, I’ve started to notice some pain, weakness and swelling in my legs, particularly when walking. Any idea what could be causing this?

A: In patients who are normally active, the development of these symptoms can be the first sign of peripheral artery disease (PAD). It is not normal to have pain in your legs with activity. This suggests that a blockage has formed, reducing the blood flow in your leg when you walk. Simply, if the muscles run out of blood, they will cramp and have pain. It is very important to see your primary-care physician at this point because your body might be forming blockages in many places including the heart. There is simple treatment with medications that can be prescribed if the diagnosis of PAD is made.

Heart disease is the No. 1 killer of Americans, and sometimes the first symptom of artery blockages is not chest pain but leg pain with walking. Get evaluated.

– Dr. Chris LeSar, Vascular Institute of Chattanooga; member, Chattanooga-Hamilton County Medical Society