Orthopedic and movement
Scoliosis in Children and Teens
What the curve measurement actually decides, and what bracing was shown to do.
- Expert Reviewed
- Evidence Based
- Patient Focused
Scoliosis is a sideways curvature of the spine, usually with some rotation, most commonly identified in adolescence. The great majority of cases are idiopathic, meaning no cause is found, and most curves are mild and never need treatment. What determines management is the size of the curve measured on an X-ray and how much growing a child has left — a curve in a child with years of growth remaining behaves differently from the same curve in someone nearly finished growing. Bracing has good evidence for reducing the chance that a curve progresses to the point of needing surgery. Most children with scoliosis have no pain and no symptoms, which is why it is frequently found on screening rather than reported.
1 · What scoliosis is
Scoliosis is a sideways curvature of the spine, usually with some rotation. That rotation is why it shows as one side of the back sitting higher when a child bends forward.
The great majority of cases in children and teenagers are idiopathic, which means no cause is found. It is not caused by anything a child or a family did.
2 · When a curve needs investigating further
- Pain, particularly at night or pain that wakes a child
- Neurological changes — weakness, numbness, changes in reflexes, or bladder or bowel changes
- Onset before around age 10
- A curve bending toward the left in the upper back, which is atypical for idiopathic scoliosis
- Rapid progression
- Skin changes over the spine — a dimple, tuft of hair, or birthmark
- A very stiff curve, or one that does not change with position
3 · How it is usually found
Because most children have no symptoms, scoliosis is generally noticed rather than reported.
The forward bend test. Bending forward from the waist with the arms hanging makes rotation visible as a raised area on one side of the back. It is a screening observation, not a measurement.
What parents notice: one shoulder or shoulder blade sitting higher · a waist that looks uneven · one hip appearing more prominent · clothes hanging unevenly · a rib area that looks raised on one side when bending forward.
4 · How it is measured and monitored
The curve is measured on an X-ray, and two things drive everything that follows: the size of the curve and how much growing is left.
Growth is why the same curve means different things in different children. A curve in someone with years of growth remaining has more opportunity to progress than the same curve in someone nearly finished growing, which is why monitoring intervals are set around growth rather than around the calendar.
Monitoring means repeat examination and, where indicated, repeat imaging — watching whether the curve is changing rather than treating a number.
5 · What treatment depends on
There are three broad paths, and which applies depends on the curve size and remaining growth.
- Observation for smaller curves — the most common outcome, and not the same as doing nothing.
- Bracing for curves in the middle range in a child still growing, to reduce the chance of reaching the point where surgery is considered.
- Surgery for larger curves, or curves that keep progressing despite bracing.
What the evidence on bracing actually says
Which is why the conversation about a brace is worth having properly: the treatment works, and how well it works depends substantially on something a family influences every day.
6 · What physical therapy contributes, and what it does not
What it does not do: straighten a curve. Exercise, posture correction and manual therapy do not correct a spinal curvature, and any claim that they do should be treated with suspicion.
Scoliosis-specific exercise approaches — programs built around the individual curve pattern rather than general exercise — have a developing evidence base. Developing is the honest word: the research is growing and is not yet at the level of the bracing evidence above.
What physical therapy does contribute is real: strength and conditioning, comfort and tolerance while wearing a brace, managing any back pain that does occur, and keeping a young person active and confident in their body through a period when it is easy to withdraw from activity.
7 · Living with a brace
A brace is worn for many hours a day, usually including overnight, through a period of life when appearance and fitting in matter a great deal. The practical difficulties are real and they are worth naming rather than glossing over.
- Skin and comfort — a well-fitting brace should not cause sores; tell the team if it does rather than reducing wear time to cope.
- Clothing — a fitted layer underneath, and looser clothing over, makes it far less visible than most young people expect.
- Heat — braces are warm, and summer is harder.
- Sleep — most people adapt within a few weeks.
- How it feels to wear — this is a legitimate thing to find difficult, and worth raising with the team rather than solving alone.
8 · Activity and sport
Children and teenagers with scoliosis can generally take part in sport, and being told to avoid activity is rarely warranted. Families frequently assume otherwise, and the assumption costs more than the curve does.
Most braces come off for sport, and the team looking after your child can tell you how that fits around wear time. Ask specifically rather than guessing.
Frequently Asked Questions
Does scoliosis hurt?
Most children and teenagers with idiopathic scoliosis have no pain at all, which is why it is usually found on screening rather than reported. Pain, particularly at night or pain that wakes a child, is one of the features that means a curve should be investigated further.
Does bracing actually work?
Yes, for the outcome that matters. In a multicentre trial of 242 adolescents, bracing succeeded in avoiding progression to 50 degrees in 72 percent of patients compared with 48 percent under observation, and the trial was stopped early because bracing was working. Among those randomly assigned, the figures were 75 percent against 42 percent.
Will my child need surgery?
Most will not. Surgery is considered for larger curves, and the purpose of monitoring and bracing is to reduce the chance of reaching that point. What determines the plan is the size of the curve and how much growing is left.
Can my child still play sport?
Generally yes. Being told to avoid activity is rarely warranted, and staying active matters for the same reasons it matters for any young person. Ask the team looking after your child about anything specific.
What does the forward bend test show?
Bending forward with the arms hanging makes rotation in the spine visible as a raised area on one side of the back. It is a screening observation rather than a diagnosis — an X-ray is what measures the curve.
Do backpacks or bad posture cause scoliosis?
No. Carrying a heavy bag, sitting badly, or sleeping in a particular position do not cause scoliosis. The great majority of cases are idiopathic, meaning no cause is identified.
How many hours a day does a brace need to be worn?
The same trial found a significant positive association between the number of hours the brace was worn and the chance of success. Patients were instructed to wear it at least 18 hours a day. Wear time is the part of treatment a family controls, which is why it is worth asking about directly.
Can exercise or physical therapy straighten a curve?
No. Exercise, posture work and manual therapy do not correct a spinal curve. Scoliosis-specific exercise approaches have a developing evidence base and may have a place alongside monitoring or bracing, but general exercise is not a treatment for the curve itself.
Sources
- Weinstein SL, Dolan LA, Wright JG, Dobbs MB. Effects of bracing in adolescents with idiopathic scoliosis. New England Journal of Medicine. 2013;369(16):1512–1521. doi:10.1056/NEJMoa1307337 (PMID 24047455)
- Scoliosis Research Society. Adolescent idiopathic scoliosis: screening, monitoring and treatment guidance. Checked August 19, 2026.
Medical disclaimer. This page is for general educational purposes and does not constitute medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider about your individual situation.