Septoplasty is an operative procedure that corrects deviation of the nasal septum. The nasal septum is a bony cartilaginous wall that separates the two nasal cavities. The septum helps to support the nose and to regulate airflow. Deformities of the nasal septum are either present at birth (congenital) or occur from a traumatic injury to the nose. Septoplasty is performed to correct the shape of the nose or to correct breathing problems caused by a deformed septum.