Deep-vein thrombosis

Deep-vein thrombosis (often abbreviated as DVT) is a medical condition that occurs when a blood clot forms in one or more of the deep veins in your body, usually in your legs. DVT can cause leg pain or swelling, but also can occur with no symptoms.

Causes

Deep-vein thrombosis can be caused by anything that prevents your blood from circulating or clotting normally, such as injury to a vein, surgery, certain medications and limited movement.

Symptoms

Deep-vein thrombosis signs and symptoms can include:

• Swelling in the affected leg. Rarely, there's swelling in both legs.
• Pain in your leg. The pain often starts in your calf and can feel like cramping or soreness.
• Red or discolored skin on the leg.
• A feeling of warmth in the affected leg.

Diagnosis

To diagnose deep vein thrombosis, your doctor will ask you about your symptoms. You'll also have a physical exam so that your doctor can check for areas of swelling, tenderness or discoloration on your skin.

Treatment

Treatment is aimed at preventing the clot from getting bigger, preventing new clots from forming, and preventing the clot from breaking loose and causing a pulmonary embolism. Then, with treatment, the body generally can dissolve the clot over time.

Prevention

Prevention measures include:

• Avoid sitting for long periods. If you travel by airplane, walk the aisle periodically. For long car trips, stop and walk around frequently.
• Make lifestyle changes. Lose weight, lower high blood pressure, stop smoking and exercise regularly.

See also

• Pulmonary embolism
• Blood clot
• Venous thromboembolism

Deep-vein thrombosis Resources
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