Scoliosis is a curvature of the spine to one side and is categorized into structural and non-structural scoliosis. 1. Structural scoliosis is a scoliosis that cannot be corrected by bending to the side or cannot be maintained, and usually does not go away and persists for a long time. Common causes include idiopathic scoliosis of unknown origin and traumatic causes. Thoracoplasty, rheumatism, bone infections, and tumors can also be the cause. 2. Non-structural scoliosis is non-congenital, non-organic scoliosis, which can be eliminated after treatment for the cause. It can be caused by a variety of reasons, including postural scoliosis, which is caused by long-term posture, unequal length of the lower limbs, contracture of the hip joints, herniated discs caused by nerve root irritation, hysterical scoliosis or inflammatory diseases, and so on. Scoliosis should be detected and treated early, no matter what the cause is, it is necessary to consult a doctor as soon as possible for standardized treatment to prevent the deformity from worsening.