Deviated septum and snoring: what to know

The septum is the partition between the nostrils. If it bends to one side, airflow through a nasal passage may feel restricted, particularly during a cold or allergy flare. You may compensate by breathing through your mouth, which can increase vibration of soft tissues during sleep. A deviated septum is one possible contributor to snoring, not a diagnosis of obstructive sleep apnoea. Allergic rhinitis, chronic sinusitis, obesity, alcohol, sedating medicines, and the shape of the throat can also influence noisy breathing.

Notice whether blockage is one-sided, seasonal, constant, or worse when lying down. Treating nasal inflammation may improve airflow when allergy or sinus disease is involved; a clinician can advise on suitable sprays or other measures. Side sleeping, avoiding alcohol close to bedtime, and keeping a regular sleep routine may reduce snoring for some people. If symptoms persist, an ear, nose, and throat assessment can examine the septum and nasal passages. Surgery is considered only when symptoms and examination support it.

Arrange assessment if snoring is loud and frequent, disrupts a bed partner’s sleep, or occurs with persistent nasal obstruction. Seek prompt medical advice for witnessed pauses in breathing, gasping, morning headaches, marked daytime sleepiness, or difficulty concentrating, as these can occur with obstructive sleep apnoea. Urgent help is needed for severe breathing difficulty while awake, blue lips, confusion, or chest pain.

Could my nasal blockage be caused by a deviated septum, allergy, or sinus disease? Do my sleep symptoms suggest obstructive sleep apnoea? Would a sleep assessment or ENT examination help? Which measures are safe to try first? When would surgery be considered?