People who have a deficiency of qi in the body are prone to numbness in the feet, which requires more attention to exercise and more food containing zinc and iron. In addition, cervical and lumbar spine diseases, diabetes and neuritis and other diseases can also lead to foot numbness symptoms. 1, blood weakness: the root cause of foot numbness is due to the obstruction of blood flow, and nerve numbness, so the oxygen supply capacity of people with weak blood is relatively low, it is easy to cause foot numbness. This situation can go to the hospital to check to see if it is because of anemia, calcium deficiency caused by the lack of qi and blood. 2, cervical and lumbar spine disease: cervical spondylosis or lumbar disc herniation patients, their feet nerves are easily compressed, resulting in numbness in the legs, for cervical and lumbar spine disease serious patients may also lead to paralysis and incontinence, so if the foot often numbness must go to the doctor, timely treatment. 3, diabetes: diabetic patients in the early stage will appear numb feet, and it is easy to cause other diseases of neurological, leading to numbness more serious symptoms. Therefore, the occasional numbness of the feet do not need to be nervous, a short time to recover, but if regular numbness of the feet for a long time can not be relieved, we must be alert, and according to their own situation timely medical treatment.