What are the levels of severity of scoliosis?

3 generally used: Mild, moderate and severe are terms generally used to describe this deformity with curves over 50 to 60 degrees entering the severe range while under 25 -30 degrees are mild with moderate are in between.

Based on Cobb angle: Scoliosis curvatures are generally described by something known as the cobb angle. This is measured by calculating the angle between the most tilted vertebrae on each end of the curve, known as the end vertebrae. The larger the cobb angle the more severe the curvature. Thank you for your question.