Scoliosis is one of the conditions that can twist your spine out of shape. The most common type affects children during their growth spurt before puberty, bending the spine sideways. If your child has scoliosis, their shoulders might be uneven, or one shoulder blade might stick out more than the other. Nobody knows what causes this. Scoliosis can get worse and cause problems, but a brace may help prevent that and the need for surgery to correct it.