Rehabilitation can be done during the bed rest period after a lumbar 12 fracture. Early rehabilitation methods include limb joint mobilization and isometric contraction, respiratory training, and physical factor therapy. Pain and swelling are the main symptoms during the bed rest period after lumbar spine 12 fracture, and the main focus is on bed rest and immobilization with braces. 1, limb joint movement and isometric contraction: several times a day to prevent contracture and improve blood circulation of the affected limbs. 2, respiratory training: the main purpose and effect is to improve the respiratory tidal volume, enhance the respiratory muscle group muscle strength, to avoid the generation of lung infection. Patients can choose the supine position, inhale and exhale forcefully, stop for several seconds and repeat several times. 3ćPhysical factor therapy: wax therapy and infrared ray to improve the local blood circulation of fracture, reduce inflammation and swelling, and alleviate the pain; ultrashort wave therapy or low-frequency magnetic therapy to promote fracture healing and regeneration. Pulsed electromagnetic field or ultrasound therapy to reduce scarring and adhesion and promote bone scab growth. It should be noted that lumbar vertebra 12 fracture may also be combined with spinal cord injury, with symptoms such as paralysis of lower limbs and incontinence. If this is the case, the rehabilitation content will be different from the above. Rehabilitation of lumbar spine 12 fracture in bed should be carried out under the guidance of a doctor and in a gradual manner.