Symptoms of nerve adhesion after lumbar spine surgery include nerve conduction disorder, which can be judged by straight leg raising test and is usually treated conservatively. 1. Nerve conduction disorder: Nerve adhesion can cause the nerve root to be unable to move normally, so when bending, squatting and other lumbar activities, there will be numbness in the lower limbs, radiating pain and other symptoms. 2. Straight leg elevation test: a normal person lying flat on the bed, one leg straightened and elevated to the angle of 80 degrees with the bed can be no pain, if the nerve adhesion occurs, the elevation is less than 70 degrees can have radiating pain. Since lumbar spine surgery has already been performed, another surgery is not conducive to recovery. Therefore, conservative treatments, such as sports massage and nerve-nourishing drugs such as coenzyme A and B vitamins, are usually used to alleviate the symptoms and allow the nerve to recover on its own, but it is recommended to carry out rehabilitation under the guidance of a doctor.