Heart & Vascular:

Conditions

Deep vein thrombosis is characterized by clotted blood in a vein deep within the body. If a deep-vein blood clot becomes dislodged from the vein wall and is carried to the lungs, it can block blood flow and lead to a pulmonary embolism (blockage of an artery that carries oxygen-poor blood to the lungs). Most deep-vein blood clots occur in the calf or thigh. Symptoms of deep vein thrombosis in the leg include swelling, pain, redness, skin discoloration and heat radiating from a specific area of the leg.