Lumbar disc herniation is a relatively common disease, and patients will experience low back pain and limited activity. Lumbar disc herniation is mostly caused by lumbar disc disease. The annulus fibrosus loses elasticity or ruptures, causing cracks and protrusions. Or under the action of external force, the annulus fibrosus ruptures and the nucleus pulposus prolapses, compressing the nerve roots and sciatic nerve, causing low back and leg pain or numbness.

The main symptom is radiating, burning or knife-like pain along the sciatic nerve pathway. The pain is often aggravated by walking, coughing, sneezing, bending or defecation. If it is severe, it will cause urination. Incontinent people cannot take care of themselves.