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| Intermittent claudication is caused by arterial insufficiency (inadequate blood supply), primarily due to atherosclerosis. Atherosclerosis is a condition that involves fatty build-up and narrowing of the arteries, which thus occludes or limits blood flow through them; the narrowed areas may be localized or extensive. Others include high blood pressure, high cholesterol, diabetes mellitus and a family history of atherosclerosis. In more advanced cases, the pain may also come on at rest, especially during the night. For example, a person who doesn't walk far enough or fast enough to bring on discomfort may remain unaware of a problem. Pain in the lower legs can also be caused by arthritis of the spine, herniated vertebral disk, and other diseases of the spine which can pinch the nerves that supply the legs. |
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