Deep vein thrombosis
Deep vein thrombosis (DVT) is a blood clot that usually occurs in a deep vein in the leg, and may lead to a potentially fatal pulmonary embolism (PE), if a piece of the clot breaks off and travels to the lungs. When DVT and PE occur together, they’re known as venous thromboembolism (VTE). DVT warning signs include:
■ Pain, swelling and tenderness in one leg (usually calf).
■ Heavy ache in the affected area.
■ Warm skin in the area of the clot.
■ Reddish discolouration or streaks, particularly at the back of the leg below the knee.