Chronic infection in the mouth (especially root canals), throat or sinuses
-flora imbalance in the mouth and the respiratory track are some of the known causes of bad breath, halitosis, fetor oris, ozostomia, or stomatodysodia.

Some types of medication can cause bad breath. Medicines associated with bad breath include nitrates – which are sometimes used to treat angina, some chemotherapy medication and phenothiazines (tranquilizers). If the medication you are taking is causing bad breath, your health expert may be able to recommend an alternative.

Bad breath is sometimes caused by a medical condition… although this is very rare. Other medical conditions that can cause bad breath include lung, throat or nose infections, such as bronchitis, sinusitis, diabetes and gastritis – inflammation of the lining of the stomach and food reflux.

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