The first is related to the posture, the body is in a flexed state when squatting, especially the knee joint is in a long-term flexed state, for the peroneal nerve, the peroneal nerve has long-term compression, the peroneal nerve after long-term pressure will cause the dorsal side of the foot, or calf skin hypoesthesia, a numb feeling. Second, squatting feet numb, to ask the patient whether there is hypertension, diabetes, and some hypertension, diabetes patients caused by the dorsal foot or lower extremity of the blood vessels have plaque, thrombosis, long-term squatting posture will cause vascular blood supply disorders, can also cause numbness in the feet, this time up after the activity of numbness can be improved. After squatting the feet numb, mainly due to nerve pressure and vascular ischemia caused by the symptoms.