Lumbar spine instability refers to the failure of the lumbar intervertebral joints to maintain a normal physiological symmetrical relationship under normal loading, resulting in an abnormal increase in the range of motion and a series of clinical symptoms. Lumbar spine instability is most common in middle-aged women, patients will experience acute or chronic low back pain, and the pain can be radiated to the buttocks and the back of the thighs, usually not more than the knee joint. Patients are afraid to do bending posture, when bending to a certain degree, lumbar pain will occur in the lumbar fracture. Some patients may experience weakness of the back and lower limbs, and may experience sudden falls during activities. If patients have the above symptoms, they should go to the hospital in time, and the physician will judge the condition according to the medical history, symptoms and imaging tests, and then target treatment.