McKenzie Lumbar Therapy is an internationally recognized relaxation method with therapeutic effect on lumbar disc herniation. The main principle is to stretch the limbs, thus stretching the nerve roots, ligaments, and muscles around the discs, relieving the discomfort of lumbar pain and helping to restore the lumbar spine to its normal physiological curve. The main content of McKenzie’s lumbar therapy is to stretch the lumbar spine in reverse, including five basic movements such as prone, prone stretching, horizontal stretching, standing stretching, and flat bending. Pain in the hips and legs is caused by herniated discs that herniate backwards compressing or irritating nerve roots. And when the spine is stretched backwards, the discs move forward, causing the herniated nucleus pulposus to move forward as well, thus greatly relieving nerve root compression. After stretching, the normal physiological curvature of the lumbar spine forward can be well restored or maintained, and the posterior strength of the psoas muscle can be strengthened at the same time. Patients need to carry out standardized training under the guidance of physicians. At the same time, McKenzie lumbar therapy is not applicable to all patients with lumbar spine disorders, and has no effective therapeutic effect on lumbar spine problems such as lumbar spondylolisthesis, spinal stenosis, scoliosis, and lumbar spine instability.