Deep vein thrombosis is a blood clot that develops in a large vein, usually occurring in the pelvis or the leg, but can also occur in the arm. A blood clot may occur when the cells in the blood clump together while moving through a vein. Blood thinners (anticoagulants) are used to prevent blood clots from continuing to grow and from breaking free to travel from the legs or arms to the lung.
What is deep vein thrombosis?
