Sciatica may be due to a ruptured intervertebral disk, narrowing of the spinal canal that puts pressure on the nerve called spinal stenosis, or an injury such as a pelvic fracture.

• 坐骨神经痛可由椎间盘破裂、椎管狭窄压迫神经（脊椎狭窄）或创伤（骨盆骨折）导致。