Scoliosis is a problem with the curve in your spine. In scoliosis, your spine makes a large curve from side to side in the shape of the letter "S" or the letter "C." The spine may also be twisted (rotated). If this curve is severe, it can cause pain and make it hard to breathe.
Most cases of scoliosis are mild and don't need treatment. If your scoliosis is severe, you may need a brace or surgery.