There are many causes of foot numbness, the common causes are mainly the following: 1, lumbar disc herniation, the disease is one of the common diseases that cause foot numbness. Due to lumbar disc herniation, compression can compress the sciatic nerve, thus causing the symptoms of lower limb numbness, perfect lumbar spine examination can be clearly diagnosed. The treatment is mainly through Chinese physiotherapy such as acupuncture, massage, traction and other ways to effectively improve the symptoms. 2, cerebrovascular diseases, such as cerebral hemorrhage, large cerebral infarction and other diseases can cause brain dysfunction, resulting in limb numbness, activity disorders, abnormal sensation and other clinical manifestations. 3, peripheral neuropathy, common such as diabetic peripheral neuropathy can also cause the above symptoms, if necessary, electrophysiological examination to clarify the diagnosis, the treatment is mainly to carry out etiological treatment.