Understanding and Managing Swollen Feet

4. Deep Vein Thrombosis (DVT)

Deep vein thrombosis is when a blood clot forms in the deep veins, usually in the leg. When this happens, the foot, ankle, and calf may swell significantly on the affected side. DVT can lead to severe complications if the clot dislodges, including pulmonary emboli (PE), when the clot travels to the lung. In addition to swelling of the affected leg, symptoms of a DVT can include pain, tenderness, fever, and redness. Treatment is generally anticoagulation to prevent further clotting.

Symptoms of PE can include sudden shortness of breath, wheezing, sweating, rapid heartbeat, and pale, clammy skin. PE is a medical emergency. If you are experiencing symptoms, seek emergency medical care.