Blood clots are formed when blood thickens and clumps, which can block blood flow in your veins or arteries. Deep vein thrombosis (DVT) is a blood clot that forms in a vein deep inside your body, often in your leg. Pulmonary embolism (PE) is a blood clot that travels to your lungs. Blood clots can be life-threatening if they block blood flow to your heart, brain, or lungs.
There are many things you can do to help prevent blood clots, including: