When a compression fracture of the thoracic spine heals, pain symptoms gradually improve, and thoracic back flexion, extension or lateral bending activities gradually improve and are no longer affected. 1. Gradual improvement of pain symptoms: Thoracic compression fracture can cause pain symptoms due to the movement of the fracture end, which stimulates the peripheral nerve endings. In addition, the fracture end can develop aseptic inflammation, and the inflammatory factor can also stimulate the peripheral nerves and cause thoracic back pain. When the vertebral fracture heals, these conditions will gradually disappear and the pain symptoms will gradually improve. 2. Significant improvement of activities: Thoracic compression fracture can cause significant limitation of extension, flexion, lateral bending and rotation of the thoracic spine, and in severe cases, it can cause sensory and motor function impairment in the innervated area. When the mild thoracic compression fracture heals, the thoracic back flexion, extension or lateral bending function gradually improves and is no longer affected. Thoracic compression fractures require active medical attention and treatment as prescribed by the physician.