Scoliosis

What it is

Scoliosis is a three-dimensional deformity: the spine curves sideways and rotates at the same time, which is why one side of the ribcage becomes more prominent when bending forward. Most adolescent cases are idiopathic - no identifiable cause.

Asymmetric muscle activity follows the curve rather than causing it, which is why strengthening one side does not straighten anything. What specific scoliosis-focused exercise approaches can do is slow progression in some curves, improve function and reduce pain - a more modest but genuine claim than either the sceptics or the enthusiasts usually make.

What it feels like

• Uneven shoulders or hips, or one shoulder blade more prominent than the other
• A rib hump visible when bending forward, which is the classic sign
• Clothes hanging unevenly
• Often no pain at all in adolescents, which is why it is frequently found incidentally
• In adults, back pain, stiffness and sometimes reduced walking tolerance

What causes it

Most people have more than one of these at once, and they feed each other. Read the list looking for the two or three that sound like your week rather than for the one true answer — the ones that describe you are the ones worth acting on.

Idiopathic - no identified cause

The large majority of adolescent scoliosis has no identifiable cause. Genetic factors are involved and the mechanism is not understood, which is unsatisfying and true.

Genetics

Scoliosis clusters strongly in families and the risk is substantially higher with an affected first-degree relative.

Growth

Curves progress fastest during the adolescent growth spurt and generally stabilise once skeletal maturity is reached. The remaining growth is the main determinant of progression risk.

Curve magnitude at diagnosis

Larger curves at presentation are more likely to progress. This is why early identification during growth matters and why monitoring is the standard approach.

Sex

Curves requiring treatment are several times more common in girls, though small curves are equally common in both sexes.

Neuromuscular conditions

Cerebral palsy, muscular dystrophy and spina bifida produce a different type of scoliosis with different management. It behaves and progresses differently from the idiopathic form.

Degenerative change in adults

Adult scoliosis can be a progression of an adolescent curve or a new curve caused by asymmetric degeneration of discs and facet joints. The adult form is more often painful.

Asymmetric muscle activity

Muscle activity differs across a curve, and this follows the deformity rather than producing it. It matters for symptoms and for function, and it does not explain the curve.

Not backpacks or posture

Neither carrying a heavy bag on one shoulder nor sitting badly causes scoliosis. This is worth stating plainly because it is a persistent and guilt-inducing myth.

Who tends to get it

• Adolescents during their growth spurt, particularly girls
• Anyone with a first-degree relative with scoliosis
• People with a neuromuscular condition
• Older adults, in whom degenerative scoliosis becomes more common
• Anyone with a curve identified before skeletal maturity, in whom monitoring matters

What makes it worse, and what settles it

The qFIT routine for this

Ready-made routineBack Pain/Bulletproofing

qFIT already has this one built. It runs massage first, then stretching, then strength — the order that works on a body that is already sore — and every activity in it carries the reason it is there.

The button below opens your Checklist with this routine already selected, so instead of your whole list you land on just its Categories, Targets and Exercises, each with its checkbox, ready to tick as you work through them.

Have more than one problem? Tick yours under My Problems on My Profile and your Checklist's Routine list gains Recommended for my problems — every routine for the problems you picked, merged into one. Your picks stay private; that filter is the only thing they feed.

Get it checked if…

A rapidly progressing curve during a growth spurt needs orthopedic review; a new curve in an adult with pain needs imaging

And whatever the body part: chest pain or unusual breathlessness on exertion; a fever alongside the pain; unexplained weight loss; pain that is constant and unrelated to how you move; new numbness, weakness or loss of bladder or bowel control; or one calf that is swollen, warm and painful. Any of those, stop and get assessed.

How it usually goes

Most adolescent curves are small, do not progress significantly and need only monitoring. Larger curves during growth may need bracing, which does reduce the likelihood of progression to surgery. Exercise is a genuine adjunct rather than a cure: scoliosis-specific approaches can slow progression and improve symptoms, and general strengthening helps function and pain in adults. Being clear about that distinction is more useful than either overselling or dismissing it.

Prevalence basis: School screening data

Others the same routine covers

These share the Back Pain/Bulletproofing routine, so the work is the same. If one of them also sounds like you, that is a reason to expect more from it, not less.

This is general information, not a diagnosis, and it cannot examine you. If it matches you, use it to ask better questions of a clinician rather than to replace one.