Mild scoliosis does not cause any conscious symptoms. Most are first discovered unintentionally by parents or teachers, mostly by chance when parents bathe them or change their underwear. The first detection is often at the age of 10 to 13 years. The clinical manifestations are: 1. In more obvious children, both sides of the scapula can be found to be high and low, not in the same plane; girls with asymmetric breast development, the left side of the breast is often larger; one side of the back bulges; one side of the waist has folds; one side of the hip is higher than the other side; both sides of the lower limbs are not equal. Girls can have asymmetric hemline on both sides when wearing skirts. 2, back asymmetry: physical examination can be found scoliosis, “S” shape, back side of the limited bulge. Due to the scoliosis of the spine, severe cases can cause significant asymmetry of the thoracic back or low back, and can have razor back and thoracic deformity. Mild cases can be examined by the forward flexion test, which is an important method for diagnosing idiopathic scoliosis. The person examined stands with his hands bent forward flush, and the examiner observes in front of him whether the two sides of his back are symmetrical, and if there is scoliosis, the two sides of the back are asymmetrical. 3. Back pain: About 23% of patients who visit the clinic have back pain. And most patients can have no other clinical symptoms except back deformity. 4.Severe deformity can cause internal organ dysfunction, such as heart and lung dysplasia, low lung capacity, shortness of breath, palpitations, chest tightness, etc. when moving around. 5.In the gastrointestinal system, there may be indigestion, loss of appetite, etc. In the nervous system, there may be symptoms such as spinal cord and nerve root compression. Therefore, in severe scoliosis, due to major visceral dysfunction, general dysplasia, thin torso, numbness of limbs, physical weakness, etc. After middle age, localized pain, or extrusion of the ribs against the iliac wing, may occur. The spine is “S”-shaped on X-ray, with primary scoliosis in the middle, which has the greatest curvature; a relatively small reverse compensatory scoliosis can be seen above and below it. In the primary scoliosis, the vertebral space is unequal in width, the vertebral body is tilted to the concave side and displaced to the convex side, and the spine is rotated to varying degrees, with osteoarthritic changes in the late stage.