Chronic venous insufficiency

Deep venous thrombosis: It is mainly caused by the foreign blood and hypercoagulable state, so the thrombus and the wall of the thrombus only have slight adhesion, and it is easy to fall off and become a emboli to form a pulmonary embolism. At the same time, deep venous thrombosis makes the blood return significantly affected. Causes distal tissue edema and hypoxia, resulting in chronic venous insufficiency syndrome.