Stilts legs have a lot of harm, mainly to the knee joint nerves, blood vessels after compression to produce direct damage, specific as follows: 1, the peroneal nerve travels in the back of the knee joint, stilts legs when compression of the peroneal nerve damage, caused by the outside of the lower leg and the dorsum of the foot numbness, the serious cases can appear drooping feet, muscle paralysis, walking difficulties, especially diabetic patients are more likely to occur. 2, may cause varicose veins or arterial occlusion of the leg. Arterial occlusion, when stilt legs, the arteries and veins behind the knees are compressed by the pads, and the prolonged obstruction of blood circulation is likely to cause varicose veins, venous thrombosis or arterial occlusion in the legs. Especially with varicose veins of the lower limbs, diabetes, high blood pressure, long-term smoking, drinking alcohol, stilt legs for a long time will make the condition worse.