Deep vein thrombosis

Deep vein thrombosis (DVT) is a disease of the circulation and is also known as venous thrombosis, blood clot in the leg, and 'the silent killer'. DVT occurs when a blood clot forms in one of the body's large veins, blocking the blood flow. Blood that passes through the deepest veins in the calf or thigh flows relatively slowly and when a DVT occurs, it moves so slowly that a solid clot is formed. This then becomes wedged in the vein. Although most deep vein clots occur in the lower leg or thigh, they can also occur in other parts of the body. Severity Deep vein clots in the upper l...