Lateral curvature of the spine, scoliosis, is a relatively common condition. The majority of individuals with scoliosis do not require surgery or braces because their condition is self-limiting. Progressive scoliosis, however, requires therapy. The "S" shaped curve is usually more apparent on an X-ray.
Review Date 7/28/2021
Updated by: C. Benjamin Ma, MD, Professor, Chief, Sports Medicine and Shoulder Service, UCSF Department of Orthopaedic Surgery, San Francisco, CA. Also reviewed by David Zieve, MD, MHA, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.