How to eliminate thigh edema, according to the specific causes of thigh edema, to take different treatment methods. If the thigh is traumatized and causes local soft tissue swelling, local ice can be applied to reduce tissue exudation. 24 hours later, hot amylin pack is applied externally or bruise injury cream is applied externally to promote the faster decreasing of edema. Second, deep vein thrombosis of lower limbs can cause thigh edema due to blood return obstruction. If the thrombosis does not exceed 72 hours, it can be treated by intravascular thrombolysis or embolization, and the edema of the thigh can subside faster once the thrombus is dissolved. If the thrombus has formed for more than 72 hours, drug therapy such as subcutaneous injection of low molecular heparin and oral aspirin are needed to promote the dissolution and digestion of the thrombus and reduce the edema of the thigh.