Lumbar disc herniation is one of the most common diseases in spinal surgery. Treatment is divided into non-surgical and surgical approaches. For surgical treatment, conventional surgery, microsurgery, limited surgery (chemodissolution therapy), and percutaneous laser discectomy have been used successively for a long time, achieving certain clinical effects. However, there are also issues such as complications, relatively small scope of application, inconsistent therapeutic evaluation, patient inconvenience and pain, and higher costs. Therefore, ongoing exploration continues in the field of non-surgical treatment. Traction therapy is one of the most commonly used and effective methods in non-surgical treatment.