Septoplasty is a surgical procedure to straighten the bone and cartilage dividing the space between your two nostrils (septum). When the septum is crooked, it's known as a deviated septum. A deviated septum can make it harder to breathe through your nose and can increase the risk of sinus infections due to poor drainage. During septoplasty, your nasal septum is repositioned to the middle of your nose. This may require your surgeon to cut and remove parts of your nasal septum before reinserting them in the proper position. Once a septoplasty is healed, you'll likely find it's easier to breathe.