Traction therapy is effective for sciatica caused by lumbar disc herniation. 1. Usually, sciatica is caused by a herniated lumbar disc, which results in pain from pressure on the nerve roots of lumbar 4 and 5, lumbar 5 and sacral 1 vertebrae. 2. For patients with sciatica caused by lumbar disc herniation, reasonable traction therapy under the guidance of a doctor can effectively stretch the spine and widen the intervertebral space, thus effectively reducing the pressure of the intervertebral discs and the compression of the nerve roots, promoting local blood circulation; reducing the stimulation and compression of the nerve roots and relieving the pain symptoms of patients. 3. For sciatica caused by pyriformis syndrome and other causes such as tumor and tuberculosis foci invasion, traction has no effect. Sciatica patients are recommended to go to the orthopedic department in time, check the lumbar spine CT, magnetic resonance, etc., to clarify the cause of the disease, standardized treatment under the guidance of the doctor, do not delay the treatment by traction.