Could it be my deviated septum is causing bad breath?

Not typical: Tonsil issues, reflux, sinusitis, poor dental and oral hygiene and some types of food you eat are much more likely to cause bad breath than deviated septum. Septal deviation typically interferes with nasal airflow and contributes to the sensation of a stuffy nose.

Unlikely: A deviated septum normally causes blockage of nasal passages not bad breath. Sometimes food and debris can get caught in your tonsils causing bad breath. You might also see your dentist to be sure you don't have gum disease.

Yes: Nasal septum deviation is a common physical disorder of the nose, involving a displacement of the nasal septum.Symptoms of a deviated septum include infections of the sinus and sleep apnea, snoring, repetitive sneezing, facial pain, nosebleeds, difficulty with breathing, and mild to severe loss of the ability to smell and postnasal drip, all those symtoms may cause bad breath.