It is not recommended to apply hot compresses after lower extremity venous thrombosis has healed, as it is easy to promote the dislodgement of thrombus, which can cause sudden death by pulmonary embolism and jeopardize the health of the body. Lower extremity venous thrombosis is mainly caused by hypercoagulable state of blood, blood stasis and damage to the inner wall, resulting in poor venous reflux in the lower extremity, blood stagnation in the lower extremity veins, which leads to the formation of a hypercoagulable state, and ultimately the formation of thrombus in the lower extremity veins. Lower extremity venous thrombosis recovery, hepatic venous thrombus in the blood vessels and the blood vessel wall may have a mild adhesion, hot compresses will prompt the thrombus off, with the venous blood flow back to the heart, through the blood circulation will reach the pulmonary artery, easy to cause sudden death of pulmonary embolism, so the lower extremity veins are not recommended to avoid jeopardizing the health of the body by hot compresses. After the lower extremity venous thrombosis, pay attention to nutritional diet, eat more coarse grains, fruits, vegetables and other high-fiber easily digestible food, appropriate exercise, quit smoking and drinking, reduce stimulation. If you have any discomfort symptoms, you need to consult a doctor in time.