A deviated nasal septum occurs when the thin wall between your nasal passages is displaced to one side, which can cause problems with proper breathing and lead to other complications. In a perfectly healthy nose, the septum runs straight down the center, allowing for equal airflow through both nostrils. However, it is common for the septum to be off-center, either due to developmental issues or the result of an injury.
Step one: Diagnosis
Diagnosing a deviated septum will require an examination. An ENT specialist may use a nasal speculum to hold the nose open while examining the inside of each nostril with a bright light to evaluate the shape of the nasal septum. This can also be supplemented with imaging tests if additional nasal structure issues are suspected.