Symptoms of nerve injury from small open surgery for lumbar disc herniation may include low back pain, sciatica, partial paralysis of the lower limbs and so on. 1. Lumbar back pain: If the lumbar disc nerve is injured, the most basic manifestation is to cause lumbar back pain, strong nerve irritation symptoms will lead to local muscle spasm, pinprick-like, radiating pain. 2. Sciatica: the sciatic nerve is the downward controlling nerve of the lumbar spine, if the lumbar spine nerve is injured, it may lead to bilateral sciatica, as well as sensory and motor dysfunction controlled by the sciatic nerve. 3. Partial paralysis of the lower limbs: the lumbar vertebrae control the limb movement mainly for the lower limb part, if the lumbar intervertebral disc nerve injury to the control of the lower limb movement of the nerve bundles, it may trigger partial paralysis of the lower limbs. Lumbar disc herniation small open surgery nerve injury may also trigger other symptoms, such as urinary and fecal incontinence, etc., should be timely repair of the damage, alleviate the symptoms and reduce the complications of the injury.