What is lower extremity deep vein thrombosis? Lower extremity deep vein thrombosis is a common disease. This disease can be followed by lower limb edema, secondary varicose veins, dermatitis, hyperpigmentation, stasis ulcers, venous gangrene, etc., which seriously damage the health of working people. Stagnant venous blood flow, damage to the venous wall, and hypercoagulable state of blood are common causes of venous thrombosis. A single factor cannot cause the disease independently yet, but often the combination of two or three factors causes deep vein thrombosis. The main clinical manifestation is the sudden swelling of one limb. In patients with lower extremity DVT, localized pain is felt and worsens when walking. In mild cases, the localized heaviness is only felt, and the symptoms are aggravated when standing. What are the risks of lower extremity deep vein thrombosis? The most serious complication of this disease is pulmonary embolism, which is the most common cause of death of lower extremity DVT. How to treat lower limb deep vein thrombosis? 1.General treatment: For patients with acute DVT, bed rest and elevation of the affected limbs are required to keep the thrombus tightly adhered to the vein lining. 2.Thrombolytic therapy: This is the main modern treatment method for deep vein thrombosis. The correct use of anticoagulants can reduce the complication rate of pulmonary embolism and the sequelae of deep vein thrombosis. Its role is to prevent the formed thrombus to continue to grow and the formation of new thrombus in other parts, and to promote the thrombosed vein to retube more rapidly. 3.Surgical therapy: deep vein thrombosis of the lower extremities, generally not for surgery to remove the embolus. But for extensive iliofemoral vein thrombosis with arterial blood supply obstruction and the limb tends to gangrene (femoral cyanosis), surgery is often required to remove the embolus. Early detection and timely medical treatment are the main means to save the affected limb from deep vein thrombosis and achieve good prognosis.