There are two types of lumbar spine misalignment: First, there is a dysfunction of the synovial joint of the lumbar spine, also known as synovial impaction, which should be reset by manipulation in the orthopedic department or the massage department of the hospital. Generally choose to lie in bed, the upper body in external rotation, the pelvis and lower limbs in internal rotation, after reaching the critical point for violent wrenching, can effectively return the misalignment between the synovial joints to the original place, the symptoms will be significantly relieved. Second, the lumbar spine slipped, mostly due to the upper vertebral body slipped forward, resulting in nerve root or cauda equina nerve compression, lower limb numbness and urinary and fecal dysfunction and saddle area numbness. Usually, surgical repositioning and fixation with a nail bar system is required to effectively restore the normal position of the lumbar spine and prevent the nerve from being compressed again.