The nasal septum is the part of the nose that separates the two airways and the nostrils. A deviated septum is when there is a shift from the midline or center position.

Deviations of the nasal septum may develop during growth or by trauma due to a fall, a blow to the nose or surgery that further exaggerates the deviation.

These deviations are common, and for the most part, cause no symptoms and require no treatment. However, the septal deviation may be severe enough to obstruct the passage of...