Lumbar disc herniation has the following clinical manifestations. First, lower back pain accompanied by unilateral radiating pain in the lower limbs. Second, numbness in the localized area. Third, weakness in the toes. Fourth, decreased temperature in the affected limb. Upon examination, the first finding is a reduced natural anterior curve of the lumbar spine, which we refer to as a flat or board-like back. Second, it can also cause the lumbar spine to bend to one side, possibly toward the affected side or the healthy side, depending on the location of the herniation. Third, there is a fixed tender point beside the lumbar spine, which plays an active role in diagnosis and treatment. Fourth, due to pain, there is a limitation in the movement of the lower back; normally, the lumbar spine can flex 45 degrees forward, extend 20 degrees backward, and bend 30 degrees to each side. If these ranges of motion are not achievable, it indicates a significant limitation in lumbar activity. Fifth is the neurological localization examination, which primarily involves different sensory disturbances, motor disturbances, or muscle atrophy depending on the site of compression. There are also some special tests, like the straight leg raise test, reinforcement test, healthy side leg raise test, as well as the neck flexion test and femoral nerve stretch test. Lastly, additional diagnostic tests like CT or MRI can provide specific information on the location and stage of the lumbar disc herniation.