Deep vein thrombosis is a condition characterized by blood clots in the deep veins, especially in the legs. The patients experience leg pain, leg swelling, and altered skin color. Risk factors for deep vein thrombosis are advanced age, pregnancy, smoking, cancer, obesity, and a lack of physical activity.
Deep vein thrombosis is diagnosed by duplex ultrasound, venography, magnetic resonance imaging, and a D-dimer blood test.
The complications associated with deep vein thrombosis are pulmonary embolism and postphlebitic syndrome.