Symptoms and Signs of DVT (Deep Vein Thrombosis, Blood Clot in the Leg) Warning Signs and Symptoms

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Medically Reviewed on 3/25/2019

Doctor's Notes on DVT (Deep Vein Thrombosis, Blood Clot in the Leg) Warning Signs and Symptoms

Deep vein thrombosis (DVT) is a condition in which blood clots (thrombi, singular = thrombus) for in the deep veins of the extremities, usually the legs. There are a number of potential causes of DVT. Causes include broken bones, other trauma to a limb, immobility (such as prolonged bedrest or long flights), medications, smoking, genetic predisposition, and certain cancers.

Deep vein thrombosis may not cause any associated symptoms or signs. Symptoms of a deep vein thrombosis in a leg are swelling of the involved leg, leg pain, tenderness, redness, and warmth. A DVT (thrombus) in the deep veins of the leg becomes dangerous if a piece of the blood clot breaks off and passes through the blood stream, through the heart, and into the pulmonary arteries. This is known as a pulmonary embolism.

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REFERENCE:

Kasper, D.L., et al., eds. Harrison's Principles of Internal Medicine, 19th Ed. United States: McGraw-Hill Education, 2015.