The posterior aspect of the human vertebrae has a flat protruding bony structure called the spinous process, which is connected to the adjacent spinous process by the interspinous ligament, and a long ligament called the supraspinous ligament is attached to the surface of the spinous process. The supraspinous ligament is very long and runs from the occipital process of the skull down to the spinous process of the fifth lumbar vertebra. These two ligaments are mainly to prevent excessive forward flexion of the spine. If people work with their heads bent over for a long time and like to do things with their backs arched without paying attention to changing their posture regularly, these two ligaments will often be under tension with small tears, bleeding and inflammatory changes. Over time, the accumulation of inflammatory material to a certain extent, people feel pain in the thoracic back or lower lumbar region, which persists and is obvious when bending over, but pain also occurs when the trunk is tilted back excessively. In some patients, the pain may radiate to the sacrum or buttocks. Treatment is based on physical therapy, restriction of bending and lumbar braking, and local injection of corticosteroids, but it is not easy to cure in the short term. Therefore, it is important to pay attention to maintaining correct posture in work and life.