2. Patients may have numbness of hands and feet due to spinal cord diseases, which are generally found in syringomyelia and spinal cord tumor.
3. When the cervical and lumbar intervertebral discs protrude and compress the nerves, there will be numbness with symmetrical hands and feet.
4. If one limb is numb, it is necessary to consider that it may be caused by poor blood circulation caused by limb compression.