High Quality Content by WIKIPEDIA articles! Scoliosis (from Greek: skoli sis meaning "crooked condition," from skolios, "crooked") is a medical condition in which a person's spine is curved from side to side and may also be rotated. On an x-ray, viewed from the rear, the spine of an individual with a typical scoliosis may look more like an "S" or a "C" than a straight line. It is typically classified as either congenital (caused by vertebral anomalies present at birth), idiopathic (cause unknown, sub-classified as infantile, juvenile, adolescent, or adult according to when onset occurred) or neuromuscular (having developed as a secondary symptom of another condition, such as spina bifida, cerebral palsy, spinal muscular atrophy or physical trauma). This condition affects approximately 7 million people in the United States.