where do dvts usually form
Deep vein thrombosis (DVT) is a medical condition that occurs when a blood clot forms in a deep vein. These clots usually develop in the lower leg, thigh, or pelvis, but they can also occur in the arm.VT does not cause heart attack or stroke. There are two main types of blood clots. How a clot affects the body depends on the type and location of the clot: 1  A blood clot in a deep vein of the leg, pelvis, and sometimes arm, is called deep vein thrombosis (DVT).