Weakness and tenderness of the legs and feet, the following causes are common: 1, senior patients, due to a long time can not walk normally, will lead to serious weakening of leg muscle strength, muscle atrophy will also be obvious, the patient will have clinical symptoms of weakness and tenderness of the legs and feet, most patients are over 70 years old, and usually have little activity. 2, serious cervical disc herniation, cervical spinal stenosis, will cause symptoms of weakness of both lower limbs, mainly nerve compression, restricted nerve motor conduction function, and loss of innervation of the muscles of both lower limbs of the patient, resulting in muscle weakness symptoms. Cervical spine MRI can clarify the cervical spinal cord injury, as well as select the appropriate treatment modality, such as surgery, to enlarge the spinal canal according to the MRI results. Therefore, leg weakness, weakness and foot weakness should be treated promptly to restore the patient’s motor function of both lower extremities.