In the clinic there can be many kinds of diseases, can lead to the phenomenon of the patient’s left leg has no strength, for example, the patient suffers from lumbar intervertebral disc herniation, due to the protrusion of the nucleus pulposus, compression of the dural sac, stimulation of the left side of the nerve root, may lead to the muscles of the left leg to appear neurotrophic disorders, and some patients will also be accompanied by radiating tingling, skin sensory loss and other conditions. In this case, conservative treatment can be taken, the patient is instructed to bed rest, lumbar spine traction, but also can be used acupuncture, moxibustion or herbal fumigation, traditional Chinese medicine manipulation massage and other methods of treatment. If the patient suffers from space-occupying lesions in the spinal canal, this condition can also occur after nerve compression. In the treatment can be taken lumbar spine MRI film, to clarify the specific location and size of the occupying lesion, you can take surgical treatment, conventional incision removal, removal needs to be done after the pathological examination.