Blood clots are gel-like clumps of blood. They are beneficial when they form in response to an injury or a cut, plugging the injured blood vessel, which stops bleeding. Some blood clots form inside your veins without a good reason and don't dissolve naturally. These may require medical attention if found in your legs (thrombosis) or more critical locations, such as your lungs (embolism) and brain (stroke).
Deep vein thrombosis (DVT) occurs when a blood clot forms in one of the deep veins of your body, usually in your legs, but sometimes in your arm. The signs and symptoms of a DVT include:
Clots can break off from a DVT and travel to the lung, causing a pulmonary embolism (PE), which can be fatal. The signs and symptoms of a PE include:
Complete medical history and physical examination.
When doctors detect a blood clot, particularly a DVT, the goal in treatment is to prevent the blood clot from getting larger or breaking loose. Treatment can reduce your chances of developing more blood clots in the future.
Treatment depends on where the blood clot is and how likely it is to harm you.