Numbness in the feet is a very general symptom, and there are many diseases that can cause numbness in the feet. The most common is that there are two types of diseases: 1, lumbar disc herniation, the compression of the nerve caused by the numbness of the reflex zone of the foot. If the numbness in the feet is accompanied by numbness in the calves and thighs, most of them are caused by the lumbar spine. 2, peripheral neuropathy caused by diabetes, if bilateral numbness in the feet and a plane below the numbness, accompanied by coldness and loss of skin sensation, you need to pay attention to whether it is caused by peripheral neuropathy caused by diabetes, so that the nerve endings are ischemic, resulting in numbness in the feet. In addition to these two types of diseases, there are many other diseases that can cause transient numbness, such as cervical spondylosis of the medullary cervical spine, as well as some medical disorders that need to be analyzed by a doctor because of their low incidence.