Also known as: Halitosis
Bad breath (halitosis) is an unpleasant odour from the mouth that can be persistent or intermittent. While often caused by oral hygiene issues, it can indicate medical conditions.
Bad breath affects approximately 25-30% of the world's population. In about 85% of cases, the origin is in the mouth itself — specifically bacteria on the tongue, between teeth, and beneath the gum line.
Volatile sulfur compounds produced by oral bacteria are the primary cause of mouth-originating halitosis. The back of the tongue is a common bacterial reservoir.
Extra-oral causes include sinusitis, tonsil stones, acid reflux, and rarely, metabolic conditions. Persistent halitosis despite good oral hygiene warrants medical investigation.
There are several possible reasons you may be experiencing Bad Breath. Here are the most common ones.
Inadequate brushing and flossing allows food particles and bacteria to accumulate, producing odour.
Periodontal disease creates deep pockets where bacteria thrive, producing persistent bad breath.
Reduced saliva allows bacterial overgrowth. Common in medication users and mouth breathers.
Calcified debris trapped in tonsil crypts harbours bacteria that produce foul-smelling compounds.
These approaches may help manage bad breath at home. Always consult a healthcare provider if symptoms persist or worsen.
Gently clean the back of the tongue daily with a scraper or toothbrush.
Daily flossing removes odour-causing bacteria from between teeth where brushes can't reach.
Water washes away food particles and promotes saliva production.
Organoleptic assessment (smell test), halimeter measurement, dental examination, and medical workup if oral causes excluded.
See a dentist or doctor if bad breath persists despite good oral hygiene, is accompanied by a persistent bad taste, bleeding gums, or nasal discharge.
Steps you can take to reduce the likelihood of experiencing bad breath.
Brush twice daily including tongue
Floss daily
Stay hydrated
Regular dental checkups every 6 months
The tongue surface, between teeth, and gum pockets harbour bacteria. Add tongue cleaning and flossing to your routine.
Yes. GERD and H. pylori infection can contribute to bad breath. If oral causes are ruled out, consider GI evaluation.
They provide temporary relief but don't address root causes. Alcohol-based mouthwashes can worsen dry mouth.
This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition.