Spastic pain in the lumbar region mainly refers to the persistent tension in the soft tissues of the lumbar region due to various reasons, which cannot be relaxed, the muscles are under persistent tension, and the fascia and ligaments are under persistent tension, which can lead to local hypoxia, ischemia, and inflammatory reactions, thus producing pain. If this symptom is not relieved quickly and lasts for a long time, it will easily lead to local tissue degeneration, scarring, adhesions, contractures, fibrosis, hyperplasia, hypertrophy and a series of other changes, thus producing sequelae. Common causes include injury, strain, lumbar instability, as well as infection and tumor of the lumbar spine, which may lead to persistent tension in the local soft tissues, resulting in spastic pain. This condition may result in significant local stiffness, dysfunction, and pain on pressure, which should be treated promptly to prevent irreversible damage.