After lumbar anesthesia puncture injury to the nerve usually manifests as a radiating sensation in the lower limbs, numbness and decreased skin sensation in the buttocks of the lower limbs. This is usually caused by the puncture needle piercing the dural sac and nerve roots, causing local bleeding and edema, which compresses and irritates the nerve roots causing blocked nerve conduction, resulting in numbness and discharge sensation in the lower limbs. When such symptoms occur, aggressive treatment is required, with hormone therapy, dehydration therapy and nerve nutrition therapy given. These drugs include mannitol injection, dexamethasone injection, methylcobalamin injection and sodium ganglioside injection, all of which can promote the recovery of local injury. However, nerve recovery is a very long process and requires aggressive medication in order to achieve complete healing and relief of symptoms.