Lumbar 45 disc herniation is the most common site of lumbar disc herniation in the clinic, which generally has the following symptoms: first, lumbar pain, which is the first symptom of most patients, is due to the lower back pain produced by the herniated nucleus pulposus stimulating the surrounding lumbar nerves, and sometimes radiating pain to the buttocks; second, unilateral or bilateral limb radiating pain, which is due to the nucleus pulposus compressing the corresponding segment of the nerve root after the lumbar 45 disc herniation. This is because the nerve roots of the corresponding segment are compressed by the herniated nucleus pulposus of the lumbar 45 intervertebral disc, resulting in compression of the sciatic nerve in the lower extremities, which causes obvious radiating pain from the buttocks to the lateral side of the calf and the lateral side of the foot. This is because the protruding nucleus pulposus compresses the cauda equina nerve. In severe cases, incontinence of stool and urine or incomplete paralysis of both lower limbs may occur.