Why do my feet go numb? The numbness of the feet is mainly due to the following reasons: first, the doctor should ask the patient whether there is diabetes in the past, there are some diabetic patients due to long-term poor blood sugar control, it is easy to cause diabetic peripheral neuropathy numbness of the feet, mainly numbness of the feet, mainly in the ankle or calf below the terminal type of sensory impairment, this time the patient can go to do electromyography and Second, the doctor of foot numbness should ask the patient whether there is weakness of the feet, whether there is a history of flu and fever or vaccination, and there are some patients with Green-Barre syndrome, such as pure sensory type, mainly numbness of the feet, this time the patient should go to do electroencephalography and lumbar puncture examination; third, the doctor of foot numbness should ask the patient whether there is long-term alcohol consumption If the patient has been drinking alcohol for a long time, it is easy to cause subacute joint degeneration and numbness of the feet with unstable walking. This time the patient can go for vitamin B1 and B12 measurement, and also go for cranial magnetic resonance examination.