What causes nasal obstruction?
Nasal obstruction (stuffiness, congestion) affects millions of Americans. It arises from a number of causes, including a deviated septum (misalignment of the normally centered sheet of cartilage and bone which divides the nose into a right and left passageway); swelling of the mucosal covering of the turbinates (bony structures lining the inside of the nose) due to illness, allergy, infection or other irritation; sinus blockage; enlarged adenoids (masses of lymph tissue in the back of the throat); and aging.