Preventing a deep vein thrombosis, also known as a DVT, is vital. A DVT is a blood clot that forms in the deep veins of the legs most commonly, but can also occur in the veins of the upper extremities. That's because the blood clot, which usually forms in a calf or thigh deep veins, can partially or completely block blood flow back to the heart and cause damage to the one-way valves in the veins. The clot can also break free and travel through your blood to major organs, such as your lungs -- which can be fatal. This is called a pulmonary embolism.
Doctors diagnose DVT in 600,000 Americans each year. One out of 100 of these people die. If you're at risk, there is much you can do to prevent DVT.
DVT stands for deep vein thrombosis, a blood clot in one of the body’s deep veins, usually deep within the leg. The biggest danger of DVT is that part of the clot could break off and travel to the lungs, where it can cause a blockage known as a pulmonary embolism, or PE, says Marc Passman, director of the vein program at the University of Alabama at Birmingham. Your doctor will talk to you about how much of a risk your clot poses.