Deviated nasal septum (DNS) is the bone and cartilage that divides the inside of the nose in two parts: left and right parts, known as the septum. A deviated septum is the condition in which the ...

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 ...

but that prevents access to other nasal areas when you need other medically necessary procedures. You need septoplasty during the repair of a cleft lip or cleft palate. You have a deviated septum ...