Snoring is more likely to occur in airways that are already compromised by structural factors, including Micrognathia or retrognathia Nasal septal deviation Rhinitis that causes tissue swelling Obesity Macroglossia Enlarged soft palate Enlarged lateral pharyngeal walls Etiology of Snoring Primary snoring Primary snoring is snoring that is not accompanied by awakening or excessive arousals, limitation of airflow, oxygen desaturation, or arrhythmias during sleep and that occurs in people who do not have excessive daytime sleepiness.