Deep vein thrombosis (DVT)

Short summary: Deep vein thrombosis is a blood clot that forms in a deep vein, usually in the leg. It matters because part of the clot can travel to the lungs and cause a pulmonary embolism.

Basic information about deep vein thrombosis (DVT)

Typical symptoms include swelling in one leg, pain or tenderness, warmth, redness, or a feeling of heaviness. However, not every case has dramatic symptoms, and not every swollen leg is caused by DVT. ^[1][2]

Risk factors include surgery, immobility, long travel, cancer, pregnancy, certain medications, smoking, and inherited clotting tendencies. Diagnosis often involves clinical assessment, D-dimer testing in selected cases, and ultrasound imaging. Treatment usually includes anticoagulant medication, while urgent care is needed if chest pain or shortness of breath develops. ^[1][2][3]

Short conclusion: DVT is treatable, but delayed recognition can be dangerous. New one-sided leg swelling or symptoms of pulmonary embolism need prompt evaluation. ^[1][2]

3) FAQ

Is every swollen leg caused by DVT?

No. Several other conditions can also cause swelling. ^[1][2]

Can a DVT clot travel to the lungs?

Yes. That is one of the major reasons DVT can become life-threatening. ^[1][2]

Do blood thinners completely dissolve the clot?

They mainly help prevent clot extension and new clots while the body gradually breaks the clot down. ^[1][3]

Can long flights cause DVT?

Long periods of immobility may increase risk, especially in people with other risk factors. ^[1][2]

When is it an emergency?

If DVT symptoms are accompanied by chest pain, shortness of breath, fainting, or coughing blood. ^[1][2]