Swelling of the feet due to prolonged standing and upright position is considered to be caused by poor venous blood return and blood pooling. The patient’s swelling can gradually improve if the patient is placed in a flat position and the feet are elevated bilaterally, with the ankle joint higher than the knee joint and the knee joint higher than the hip joint. In addition, some patients suffer from repeated attacks of varicose veins in the lower extremities, resulting in blood pooling in the distal end and even thrombophlebitis, with local skin necrosis or bleeding. The common symptom is also the swelling of the foot, and if necessary, surgery is an option to remove the tortuous and dilated vessels. The blood circulation in the lower extremities can be improved by appropriate sports and exercise, and if necessary, oral medications can be taken to improve microcirculation, the most commonly used being Myclobutanil tablets.