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Deep Vein Thrombosis Health Center

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Deep Vein Thrombosis - Cause

Three factors can increase the risk of deep vein thrombosis:

Slowed blood flow. If you have surgery or are inactive for a period of time (for example, if you are bedridden or must sit while on a long flight or car trip), blood flow in your legs is slowed, which allows a blood clot to form.
Damage to the blood vessels. Surgery or injury may damage your blood vessels.
Changes in the blood itself. Cancer or certain inherited factors may cause your blood to clot more quickly than normal.

WebMD Medical Reference from Healthwise

Last Updated: January 05, 2010

This information is not intended to replace the advice of a doctor. Healthwise disclaims any liability for the decisions you make based on this information.