Adult Scoliosis: What You Need to Know

There are two fundamentally different kinds of adult scoliosis, and which one you have determines how it behaves and how to treat it.

Adolescent idiopathicno known cause scoliosis (AIS) in adults: This is scoliosis that developed during adolescence — idiopathicno known cause means no known cause — and has been carried into adulthood. The curve was present at skeletal maturitydone growing (when you were done growing) and may or may not have progressed since then. This is the more common type in adults under 50. The curve pattern is typically the same as it was during adolescence — most commonly a right thoracicupper/middle back (upper back) curve.

Degenerativeage-related wear and tear (de novo) adult scoliosis: This develops for the first time in adulthood, typically after age 40, caused by age-related wear and tear — disc degeneration, facet joint arthropathy, and ligament laxity. The spine gradually loses its symmetrical support structures, and asymmetric collapse creates a new curve. This type is more common in the lumbarlower back (lower back) spine and is frequently associated with spinal stenosis.

The key difference: AIS carried into adulthood tends to progress slowly if at all for curves under 30 degrees. Degenerativeage-related wear and tear scoliosis can progress more unpredictably because the underlying cause — ongoing disc and joint degeneration — does not stop.

Bottom line: Ask your doctor which type you have — it changes everything about how your curve will behave and what treatment makes sense.

Far more common than most people realize: 68% of adults over 60 have some degree of scoliosis on imaging (Schwab et al., Spine, 2005). This makes it one of the most common spinal conditions in older adults — and one of the most underserved.

The gap between prevalence and treatment is enormous. Most adults with scoliosis were never diagnosed, or were told as adolescents that their curve was "mild" and did not need treatment. Decades later, pain and functional limitations bring them to a specialist for the first time. Many are surprised to learn they have scoliosis at all.

Among the general adult population (all ages), the prevalence is approximately 8% for curves of 10 degrees or more. Among adults over 60, the 68% figure reflects the cumulative effect of degenerativeage-related wear and tear changes adding to any pre-existing curvature.

Pain is the number one reason adults seek treatment for scoliosis. 60% of adults with untreated scoliosis report chronic back pain, compared to 35% of matched controls (Weinstein et al., JAMA, 2003). In adolescents, pain rates are lower — approximately 25% to 42%, depending on the study.

The pain pattern in adult scoliosis is different from adolescent scoliosis. Adults more frequently experience lower back pain (from lumbarlower back curve compression and facet joint arthropathy), leg pain (from nerve compression due to spinal stenosis or foraminal narrowing), and fatigue pain (from chronic muscle imbalance and compensatory effort).

Degenerativeage-related wear and tear adult scoliosis often presents with neurogenic claudication — leg pain and weakness that worsens with walking and improves with sitting or forward bending. This occurs because the degenerativeage-related wear and tear curve narrows the spinal canal, compressing the neural elements.

Whether your curve will get worse depends primarily on how big it was when you stopped growing. Curves over 50 degrees at skeletal maturitydone growing tend to progress at approximately 1 degree per year throughout adulthood. Over a lifetime, this means a 50-degree curve can reach 70 to 80 degrees — well into the range where respiratory function and quality of life are affected.

Curves between 30 and 50 degrees progress more slowly, typically 10 to 15 degrees over a lifetime. Curves under 30 degrees at skeletal maturitydone growing are unlikely to progress significantly in adulthood (Ascani et al., 1986), which is reassuring for the majority of people who had mild adolescent scoliosis.

Degenerativeage-related wear and tear adult scoliosis does not follow these patterns because it is driven by ongoing disc degeneration rather than an existing structural curve. Progression can be faster or more erratic, particularly in the lumbarlower back spine where degenerativeage-related wear and tear changes are most pronounced.

Monitoring matters. Adults with curves over 30 degrees should have imaging (X-ray) every one to two years to track progression. Changes of more than 5 degrees between visits, new or worsening neurological symptoms, or increasing pain despite conservative treatment all warrant specialist consultation.

Bottom line: Curves under 30 degrees are unlikely to progress much. Curves over 50 degrees need active monitoring and management.

Exercise is the first-line treatment for most adult scoliosis. Surgery is the last resort, reserved for severe or progressing cases. Here is the full treatment ladder.

Exercise-based management (first line): The Schroth method and other scoliosis-specific exercise programs are the foundation of adult scoliosis treatment. The 2023 meta-analysis by Ceballos-Laita et al. showed significant pain reduction and quality-of-life improvement with Schroth exercises. For adults, pain relief is often the primary goal, with structural correction as a secondary benefit.

Pain management: Anti-inflammatory medications, physical modalities (heat, TENS, ultrasound), and targeted injections (epidural steroid injections for nerve-related pain, facet joint injections for joint-related pain) can manage symptoms while exercise addresses the underlying cause. Pain management is a bridge strategy, not a long-term solution on its own.

Monitoring: For stable curves under 30 degrees with manageable symptoms, monitoring with periodic imaging and an exercise program may be all that is needed. Many adults live full, active lives with moderate scoliosis that never requires intervention beyond exercise.

When to consider surgery: Surgical evaluation is appropriate for curves over 45 degrees that are demonstrably progressing, neurological deficits (leg weakness, numbness, bowel/bladder changes), significant functional limitation despite adequate conservative treatment, or unbearable pain unresponsive to non-surgical management. Adult scoliosis surgery is complex, with longer recovery times and higher complication rates than adolescent surgery, so the decision threshold is appropriately high.

The single most reassuring finding in scoliosis research: patients followed for 50 years without treatment still had near-normal lives. The landmark Weinstein study (JAMA, 2003) followed patients with untreated adolescent idiopathicno known cause scoliosis for 50 years and compared them to age-matched controls.

The findings were largely reassuring. While scoliosis patients had more back pain (60% vs. 35%) and slightly more shortness of breath with exertion, they had near-normal function in nearly every other domain. Mortality rates were not significantly different from the general population for curves under 100 degrees. Most participants were working, active, and living independently.

This study does not mean scoliosis is harmless — the higher pain rate is clinically meaningful, and severe curves do affect respiratory function. But it provides crucial context: a diagnosis of scoliosis is not a sentence of disability. With appropriate exercise, pain management, and monitoring, most adults with scoliosis maintain full, productive lives.

If you are an adult who has just learned about your scoliosis or who is experiencing new symptoms from a long-standing curve, the evidence supports optimism combined with proactive management.

Bottom line: Scoliosis is not a sentence of disability — most adults with scoliosis live full, active, independent lives.