Deep Vein Thrombosis (DVT) is a condition in which a blood clot (thrombus) forms in a vein. This clot
can limit blood flow through the vein, causing swelling and pain. Most commonly, venous thrombosis
occurs in the "deep veins" of the legs, thighs, or pelvis and is called a deep vein thrombosis, or DVT.
Venous thrombosis can form anywhere in the venous system, however DVT is the most common type of
venous thrombosis. If a part or all of the blood clot in the vein breaks off from the site where it was
created, it can travel through the venous system; this is called an embolus.If the embolus lodges in the
lung, it is called Pulmonary Embolism (PE), a serious condition that leads to over 50,000 deaths a year
in the United States. In most cases, PE is caused by a DVT when part of a blood clot breaks off and lodges
in the lung. The term “Venous Thrombo Embolism" (VTE) is sometimes used when discussing both DVT
and PE.