Mild Scoliosis (10 to 25 degrees). Mild scoliosis is not serious and requires no treatment other than monitoring. Moderate Scoliosis (26 to 40 degrees). Scoliosis with a curve over 30 degrees has risks for progressing into adulthood. It also poses risk for other health problems. Severe Scoliosis (more than 40 degrees). Scoliosis with a curve over 50 degrees nearly always progresses..