It depends. A deviated septum can limit the space that is available for nasal breathing. This limitation can render a patient more susceptible to blockage due to inflammation from infection or allergies. A deviated septum can also block the regions where the sinuses empty. This can lead to more frequent and longer lasting sinus infections. Finally, the a deviated septum can cause turbulent airflow which can lead to excessive dryness of the nasal lining and subsequent bleeding or epistaxis (hyperlink). Thus, septoplasty may be recommended by our physicians for any one of the aforementioned reasons even if your nasal breathing is not affected.