Can a blood clot in the leg travel to the lungs?

Yes, a blood clot in the leg can travel to the lungs, a process known as embolization. This occurs when a clot, often originating as a deep vein thrombosis (DVT) in the leg, dislodges and moves through the venous system to the pulmonary arteries, resulting in a pulmonary embolism (PE). Medical literature describes PE as a potentially life-threatening condition that can cause symptoms such as sudden chest pain, shortness of breath, and sometimes a rapid heart rate.

Clinicians typically assess for risk factors such as recent surgery, prolonged immobility, history of blood clots, and certain genetic conditions when evaluating for PE. Diagnosis often involves imaging tests like a CT pulmonary angiogram or a ventilation-perfusion (V/Q) scan. The pattern of a PE can vary, but it commonly includes acute onset of symptoms and signs of respiratory distress.

Anyone with concerns about the possibility of a blood clot traveling to the lungs should discuss their specific situation with their healthcare provider.