When a normal person stands in front and back position, the shoulders should be parallel and equal, and the body is straight. As the longitudinal axis of the human body spine, should be like a plumb line, vertical in the axis, neither to the left, nor to the right. But the human spine is not completely vertical, lateral observation of different directions of physiological curvature, cervical spine forward convex, thoracic spine backward convex, lumbar spine forward convex, sacral spine backward convex, and symmetrical, the formation of the human body’s curvature. At the same time, whether in the standing position, or when bending forward, from the back should see the spine on both sides of the waist and back contour flat and symmetrical, there is no one side higher than the other phenomenon. Therefore, even if you are not a doctor, it is easy for the parents to notice the above changes if they are careful. If there is anything different from the above, such as unequal height of the shoulders, unevenness of the lower back, or deviation of the spine from the central axis, then scoliosis should be considered and a visit to the doctor is needed. Below is a collection of images of several post-surgical cases.