Idiopathic scoliosis is a three-dimensional deformity of the spine that accounts for approximately 70% of all scoliosis anomalies, and adolescent idiopathic scoliosis (AIS) is the most common type. AIS not only changes the shape of the trunk, but also the relationships between body parts. Considering the close anatomical relationship between the scapula and the rib cage, AIS is associated with changes in scapular position and orientation. Scapular stabilization exercises; these are exercises that aim to restore the position and orientation of the scapula and the motor control and movement pattern of the muscles, thus providing scapula stability for better shoulder kinematics. There are studies reporting that scapular stabilization exercises should be included in the rehabilitation program of patients with scapular dyskinesia and various shoulder pathologies. However, no study has been found in the literature examining the effects of scapular stabilization exercises on changes in scapular position, shoulder imbalance and curve severity seen in scoliosis. Therefore, the aim of the study is to investigate the effect of scapular stabilization exercises applied in addition to Schroth exercises used in the treatment of individuals with AIS, on scoliosis severity, scapula position and shoulder imbalance.