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More Than Just a Bad Posture: Scoliosis Explained

When you hear the word scoliosis, you might picture someone with bad posture or a heavy

backpack. In reality, it is neither of these things. Scoliosis is a condition in which the spine

curves sideways and often twists, forming an “S” or “C” shape instead of appearing straight.

As someone living with scoliosis myself, I know how easy it is for people to misunderstand the

condition or assume it is caused by poor posture. However, learning more about it has shown me that

there is so much more to scoliosis than many people realize.


While mild cases may go unnoticed, roughly 2-4% of teenagers worldwide are affected by scoliosis,

making it one of the most common spinal conditions in teenagers. Because it often develops

during puberty due to rapid growth spurts, understanding scoliosis can help young people

understand and recognize early signs to seek appropriate care when needed.


Figure 1. Measuring the Cobb Angle
Figure 1. Measuring the Cobb Angle

A healthy spine is designed to look straight when viewed from behind. However, in scoliosis patients, the spine curves sideways, usually by 10 degrees or more. This is a measurement known as the Cobb angle. In many cases, the spine also rotates, causing a shoulder blade or a side of the rib cage to appear more prominent than the other. There are several types of scoliosis, but the most common is adolescent idiopathic scoliosis (AIS). AIS affects 1-3% of children in the population, with those aged 10-15 years. The word idiopathic means that the exact cause is unknown. Although researchers believe genetics may play a role because scoliosis runs in families, no single cause has been identified yet.


Scoliosis usually develops rapidly between the ages of 10 and 18. Many teenagers do not

experience pain, and they only begin to notice its symptoms when one shoulder begins to sit higher than the other, clothes fit unevenly, or an adult notices a significant change in posture. To diagnose scoliosis, a doctor may perform a simple physical examination called the Adam’s Forward Bend Test, where the patient bends forward while the doctor checks for unevenness in the back. If scoliosis is suspected, an X-ray is used to measure the Cobb angle and determine how severe the curve is.


Treatment depends on several factors, including the size of the curve, the patient’s age, and whether they’re still growing. Small curves are often monitored with regular checkups to ensure they do not worsen. Moderate curves in growing teenagers may be treated with a supportive brace that the patient must wear during the day (typically 10+ hours and, in severe cases, up to 23 hours) and may be recommended to partake in physiotherapy, which strengthens muscles and improves posture. Surgery is usually considered only for severe curves that continue to worsen despite other treatments. The most common surgery is called a spinal fusion, involving straightening the spine using metal rods and screws, then ‘welding’ the curved bones together with bone grafts so they heal into a single solid piece.


Figure 2. A Scoliosis Brace
Figure 2. A Scoliosis Brace
Figure 3. Spinal Fusion Surgery Results
Figure 3. Spinal Fusion Surgery Results














As mentioned earlier, scoliosis is most commonly diagnosed during adolescence, making it especially relevant for students. One of the biggest misconceptions regarding scoliosis is that it is caused by carrying a heavy backpack or having poor posture. However, in reality, these factors cannot directly cause scoliosis. While carrying a bulky backpack can lead to temporary back pain, it does not change the shape of the spine, while having bad posture could be a symptom of scoliosis.


Having scoliosis does not mean someone cannot live an active life. Many teenagers with scoliosis continue to participate in sports and engage in other physical activities. Indeed, staying active is often encouraged because it helps maintain muscle strength, overall flexibility, and well-being. At the end of the day, understanding scoliosis can help dismantle these common misconceptions about it and remind us that a curved spine does not define a person’s abilities or potential.


Although scoliosis may sound intimidating, it is a common condition that many young people successfully manage. Writing this article as someone with scoliosis has reminded me how important awareness is, as understanding the condition is the first and most important step towards replacing misconceptions with the facts and supporting those around you living with this condition. With regular monitoring, appropriate treatment, and continued physical activity, most teenagers with this condition (including me!) can still live healthy and active lives.


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© 2025 Kaylyn K. | All rights reserved

Originally published at themedtales.com

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"Human knowledge is never contained in one person. It grows from the relationships we create between each other and the world, and still it is never complete." 
- Paul Kalanithi (from When Breath Becomes Air)

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