Septoplasty is a surgical procedure to correct a deviated nasal septum. The nasal septum divides the nose into two cavities and provides structural support. Techniques for septoplasty have evolved over time from early excisions of entire septal segments to today's emphasis on preservation and realignment. A standard modern procedure recognizes mucosal preservation as a primary goal and uses a submucosal approach. Septoplasty is indicated when a deviated septum causes nasal obstruction or recurrent infections. Pre-operative testing such as acoustic rhinometry or rhinomanometry can evaluate the airway before septoplasty.