DVT, or deep vein thrombosis, occurs when a blood clot forms in the deep veins of the body, most commonly in the leg. A potentially life threatening complication of DVT is called a PE, or pulmonary embolism. A PE occurs when a blood clot breaks off, travels up through the veins, and lodges in the lungs. These two conditions affect more than 600,000 Americans each year and cause more deaths than cancer, AIDS, or accidents. Signs and symptoms of DVT include: leg (or arm) swelling, leg pain (similar to a Charley horse or cramp), and the limb may feel warm to the touch. For more information on DVT: https://www.stoptheclot.org