Foot numbness clinically seen mainly in diabetic peripheral neuritis, lumbar disc herniation, Green – Barry syndrome, diabetic peripheral neuritis is mostly seen in a long history of diabetes mellitus and poor glycemic control, the patient’s foot numbness manifested as bilateral symmetry. In addition to numbness of the feet, the patient may also have excessive drinking, polyphagia, polyuria, emaciation, cold hands and feet, serious condition can be accompanied by blurred vision, foot ulcers, etc., usually should pay attention to foot warmth, do not get cold, and active control of blood glucose, oral methylcobalamin, vitamin B1 and other nutritive nerve medications. Lumbar intervertebral disc herniation is mostly seen in patients with prolonged heavy physical labor, foot numbness is mostly seen on one side, patients in addition to foot numbness can also be accompanied by limited lumbar activity, lumbar pain, lumbar CT or lumbar MRI can be seen in lumbar spine herniated discs compressed nerves, usually pay attention to rest, avoid heavy physical labor, avoid prolonged standing and prolonged sitting, lumbar spine massage, traction, massage, etc., the above effect of the severe lumbar disc herniation is not good. Patients with severe lumbar disc herniation who are not satisfied with the above results can be treated with intervertebral foramenoscopy. Green-Barre syndrome is a peripheral nerve demyelination disease, the main clinical manifestations of limb weakness and sensory deficits, sensory deficits are mainly manifested as numbness of the ends of the limbs, showing a stocking-like distribution.