A 19-year-old man presented with low back pain without radicular pain in both lower extremities for 2 years. His back pain worsened from stretching and standing for a long time. He had no history of trauma. He rated himself as 7 on a 10-point visual analogue scale. Conservative treatment, such as rest, lumbosacral brace immobilization, oral non-steroidal anti-inflammatory drugs, and physical therapy, did not relieve his back pain, which seriously affected his daily activities. He had no relevant traumatic history. Physical examination revealed a reduced range of motion in the lumbar spine, especially with limited lumbar extension. Tenderness was noted over and beside L2-L5 spinous processes. Bilateral straight leg raising test was negative. The sensory, motor, and tendon reflexes of both lower limbs were normal. Lumbar dynamic radiographs showed no instability, two-dimensional computed tomography (CT) scan showed lumbar spondylolysis at bilateral L2-L5 levels, and lumbar magnetic resonance imaging showed no signs of lumbar disc degeneration. Because daily activities were severely limited, surgery was recommended for the case.