An irregular curvature of the spine is called scoliosis. The form of the spine is "S" or "C" rather than straight. People of any age can develop scoliosis, which typically manifests during the growth spurt preceding puberty. Scoliosis severity is expressed in degrees; a curve with 10 to 25 degrees is considered mild, 25 to 40 degrees is considered moderate, and 40 degrees or more is considered...