Your septum is the dividing wall between your left and right nasal cavity. In some patients, the septum can form at an angle, making it crooked. This leads to one nasal passage being smaller and more narrow than the other.
What Is a Deviated Septum?
A deviated septum is when the septum (the wall separating the left and right nasal cavity) is not straight. Any deviation of the septum can cause narrowing of one or both sides of the nasal airways. This can make breathing more challenging, as it limits the airflow through the nasal cavity. Chronic congestion or nasal blockages can also occur because of a deviated septum.