Stephen J. Schueler, M.D.

Overview Incidence Risk Factors Symptoms Evaluation Treatment questions for doctor specialist Home Care pain and inflammation warning signs Prevention Outlook Complications Underlying Cause Anatomy

Leg Veins Varicose Underlying Cause

Veins are thin-walled vessels that carry oxygen-poor blood to the heart. Veins permit the flow of blood in one direction: back to the heart. Tiny valves inside the veins prevent blood flow from reversing direction. Working muscles help pump blood through the veins and back to the heart. Damage to valves in the leg veins causes blood to go the wrong direction and increases pressure in the lower leg veins. This causes the leg veins to bulge and prevents other valves from working normally.

Causes of varicose veins include:

Continue to Leg Veins Varicose Anatomy

Last Updated: Feb 11, 2011 References
Authors: Stephen J. Schueler, MD; John H. Beckett, MD; D. Scott Gettings, MD
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PubMed Leg Veins Varicose References
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