Conditions InDepth: Scoliosis
by Rosalyn Carson-DeWitt, MD
Scoliosis is an abnormal curvature of the spine. Instead of going from top to bottom in a relatively straight line, a spine with scoliosis may appear to have a side-to-side “S-shaped” or “C-shaped” curve. Mild degrees of scoliosis won’t cause you any problems. However, more severe cases of scoliosis can result in pain, weakness, and low self-esteem because of obvious cosmetic deformity. Very severe scoliosis may cause heart and lung problems if those organs are overly cramped in an abnormally shaped chest cavity.
Children may also have kyphosis, which is an abnormal forward curve, usually the upper back.
Most cases of scoliosis begin when a child is around 8-10 years old with gradual progression of the abnormal curvature as they continue to grow. However, it can present at any age, including newborns.
There are several types and classifications of scoliosis.
Structural scoliosis occurs because of a vertebral body defect. Classification of structural scoliosis is based on the cause of the defect:
They may also be classified by age at onset as congenital, infant, juvenile, or adolescent.
Functional scoliosis is the result of an underlying condition that affects the alignment of the spine due to muscle imbalances, differing leg lengths, or other health conditions that cause the muscles to tense and spasm.
This type of scoliosis can be reversed by treating the underlying condition.
Adolescent idiopathic scoliosis. EBSCO DynaMed Plus website. Available at: http://www.dynamed.... Updated March 18, 2017. Accessed May 16, 2017.
Altaf F, Gibson A, Dannawi Z, Noordeen H. Adolescent idiopathic scoliosis. BMJ. 2013;346:f2508.
Congenital scoliosis and kyphosis. EBSCO DynaMed Plus website. Available at: http://www.dynamed.... Updated January 19, 2016. Accessed May 16, 2017.
Idiopathic scoliosis in children and adolescents. Ortho Info—American Academy of Orthopedic Surgeons website. Available at:
...(Click grey area to select URL)
Updated March 2015. Accessed May 16, 2017.
Infantile and juvenile idiopathic scoliosis. EBSCO DynaMed Plus website. Available at: http://www.dynamed.... Updated July 13, 2016. Accessed May 16, 2017.
Questions and answers about scoliosis in children and adolescents. National Institute of Arthritis and Musculoskeletal and Skin Diseases website. Available at: https://www.niams.nih.gov/Health_Info/Scoliosis/default.asp. Updated December 2015. Accessed May 16, 2017.
Trobisch P, Suess O, Schwab F. Idiopathic scoliosis. Dtsch Arztebl Int. 2010;107(49):875-883.
What is scoliosis? Fast facts: An easy-to-read series of publications for the public. National Institute of Arthritis and Musculoskeletal and Skin Diseases website. Available at: https://www.niams.nih.gov/Health_Info/Scoliosis/scoliosis_ff.asp. Updated November 2014. Accessed May 16, 2017.
Last reviewed May 2017 by EBSCO Medical Review Board Michael Woods, MD, FAAP
Last Updated: 12/20/2014
EBSCO Information Services is fully accredited by URAC. URAC is an independent, nonprofit health care accrediting organization dedicated to promoting health care quality through accreditation, certification and commendation.
This content is reviewed regularly and is updated when new and relevant evidence is made available. This information is neither intended nor implied to be a substitute for professional medical advice. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with questions regarding a medical condition.
To send comments or feedback to our Editorial Team regarding the content please email us at firstname.lastname@example.org. Our Health Library Support team will respond to your email request within 2 business days.