Scoliosis is a sideways curvature of the spine that most often is diagnosed in adolescents. While scoliosis can occur in people with conditions such as cerebral palsy and muscular dystrophy, the cause of most childhood scoliosis is not known.
Most cases of scoliosis are mild, but some curves worsen as children grow. Severe scoliosis can be disabling. An especially serious spinal curve can reduce the amount of space within the chest, making it difficult for the lungs to function properly.