Lumbar protrusion left leg pain and now right leg pain, consider most of the lumbar disc herniation condition related to aggravation. Lumbar herniation is known as lumbar disc herniation, due to lumbar degenerative changes, injuries, developmental abnormalities and other reasons, so that the lumbar spine outside of the annulus fibrosus rupture, the internal nucleus pulposus protrudes outward and compression of the nerve root, according to the direction of the protrusion, the degree of compression of the nerves can have different symptoms. When the nucleus pulposus protrudes and compresses the left nerve root and sciatic nerve, the symptoms such as radioactive pain and numbness of the left lower limb can occur. When the condition worsens and the nucleus pulposus protrudes to a higher degree and accumulates the right side nerves, the corresponding symptoms of right leg pain can occur. Lumbar protrusion left leg pain now right leg and pain may be caused by lumbar intervertebral disc herniation aggravation, may also be caused by the right leg of the new disease, it is recommended to improve the lumbar vertebrae CT, MRI, the right leg of the MRI and other tests, to clarify the cause of the disease after targeted treatment.