Septoplasty is a surgical procedure performed to correct a deviated nasal septum, the wall between the two nostrils. When the septum is crooked, it can cause breathing problems, nasal blockage, frequent sinus infections, or nosebleeds. Septoplasty straightens the septum to improve airflow and overall nasal function. The surgery is usually done under anesthesia and does not change the shape of the nose. Recovery is generally quick, and most patients experience better breathing after the procedure.