Background: Scoliosis is lateral deviation of spine mostly on loading area of spine. Idiopathic Scoliosis (IS), very common form of scoliosis which cause is unknown but some triggering events gives believe to leads this and resulting in spinal deformation in spinal curvature (measured in cobb’s angle) and irregular loading of spine. Objective: To determine the effects of visceral mobilization on vital capacity and Cobb’s angle in scoliosis among adolescent females. Methods: Total nine female patients were participated in the study. Age ranges from 9-11 years with idiopathic spine scoliosis, Cobb’s angle 100 or above were included. Treatment was given including conventional physical therapy followed by visceral mobilization techniques for chest and associated muscles of respiration. Treatment time was 45-60 minutes and total 18 sessions were given in 6 weeks with the frequency of 3 sessions per week. Result: The overall mean age of the participants was 16.77 ± 4.95 years. Statistically significant results were also obtained in Force Vital Capacity with the p-value of 0.05 and there was significant improvements in the Cobb’s angle of the participants were noticed with the p-value of 0.02. Conclusion: Visceral mobilization has a significant impact on Force Vital Capacity (FVC) and eventually in reduction of Cobb’s angle in scoliotic patients.