Keeping the same posture for a long time is easy to lead to poor blood reflux of lower limbs and thrombosis. Venous thrombosis is that thrombosis blocks blood vessels and prevents blood circulation, resulting in limb swelling, pain, superficial vein dilatation, varicose and other clinical manifestations. After venous blood returns to the heart, it will enter the lungs to complete the exchange of oxygen. Deep venous thrombosis only slightly adheres to the blood vessel wall at one end of the blood vessel, and the other end of the thrombus floats freely in the blood vessel wall. Hot compress, massage and squeeze the lower limbs are easy to make the thrombus fall off and flow into the heart with the blood, and finally stuck in the pulmonary artery, resulting in obstruction of pulmonary artery blood flow, cough, chest tightness and other symptoms, and even asphyxia, pulmonary embolism.
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Preventing venous thrombosis requires people to exercise.