Numbness of the feet may be related to physiological reasons such as prolonged squatting or pathological reasons such as lumbar spine disease, vascular disease, diabetes mellitus complications and so on. 1. Physiological reasons: If you keep squatting for a long time, it may cause the blood vessels in the legs to be squeezed for a long time, resulting in poor blood supply to the feet, and the phenomenon of numbness of the feet may occur. Generally, it lasts for a short period of time and can be restored to normal after changing the posture. 2. Pathological causes: lumbar spondylosis such as lumbar disc herniation can compress the nerve root, which can lead to numbness in the foot of its innervation; varicose veins and other vascular diseases of the lower limbs, due to poor blood circulation in the lower limbs, may also appear numb feet. Diabetic patients may cause damage to peripheral nerves, which may also cause numbness of the feet. Others, such as ankle-tube syndrome and pyriformis syndrome, may also experience numbness of the feet. It is recommended that people with numbness of the feet in the exclusion of physiological causes, go to the regular hospital in a timely manner, to clarify the cause of the disease, under the guidance of the doctor for standardized treatment.