• Deep vein thrombosis (DVT) is a blood clot that forms in a vein deep in the body. Most deep vein blood clots occur in the lower leg or thigh. They also can occur in other parts of the body.
• A blood clot in a deep vein can break off, travel through the bloodstream to the lungs, and block blood flow. This condition is called pulmonary embolism (PE). PE is a very serious condition that can cause death.
• Blood clots can form in your body's deep veins when:
- Damage occurs to a vein's inner lining
- Blood flow is sluggish or slow
- Your blood is thicker or more likely to clot than normal
• Many factors increase your risk for DVT. People who have had DVT before or have more than one risk factor are at increased risk for the condition.
• Only about half of the people who have DVT have signs or symptoms. Signs and symptoms occur in the leg affected by the deep vein clot. They include swelling of the leg or along a vein in the leg, pain or tenderness in the leg, increased warmth in the area of the leg that's swollen or in pain, and red or discolored skin on the leg.
• Other symptoms may relate to PE. These may include unexplained shortness of breath, pain with deep breathing, and coughing up blood.
• Your doctor will diagnose DVT based on your medical history, a physical exam, and the results from tests. He or she will identify your risk factors and rule out other causes of your symptoms.
• DVT is treated with medicines that thin the blood, interfere with the blood clotting process, and dissolve blood clots. Other treatments include filters to catch blood clots and compression stockings that prevent blood from pooling and clotting.
• You can take steps to prevent DVT. See your doctor regularly. Follow your treatment plan as your doctor prescribes, stay active if possible, and exercise your lower leg muscles during long trips.
• Contact your doctor at once if you have any symptoms of DVT or PE.
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