A deviated septum, or nasal septum deviation (NSD), is when the septum (the thin wall separating the two nasal passageways in the nose) is off-center. A deviated septum curves to one side, making ...

Turns out, I had a deviated septum, which meant that the airflow through my nose was obstructed on one side. These are fairly common and can be congenital or caused by a traumatic face injury ...