Anything that impedes the flow of air into and out of one or both of the nasal passages can cause nasal obstruction. While most cases of nasal obstruction are temporary, caused by sinusitis, sinus infections, nasal congestion, allergies, etc., the blockage may also be caused by an anatomical factor. Anatomical blockages include a deviated septum, enlarged adenoids, nasal polyps, turbinate enlargement and tissue, external nasal deformity, collapse of nasal valves or foreign objects. Snoring is often a symptom of a nasal or oral airway obstruction.
If the obstruction is temporary, avoidance of the allergen, saline rinses and/or medications can help. If the obstruction is anatomical and unresponsive to medical therapy, sinus surgery is usually required.
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