Bad breath, or halitosis, affects an estimated 25% of people globally. While occasional bad breath from foods like garlic is normal, persistent bad breath often signals an underlying dental issue that needs attention.
The most common cause is bacteria buildup on the tongue, between teeth, and along the gum line. These bacteria break down food particles and release foul-smelling sulphur compounds. Dry mouth is another major contributor — saliva naturally cleanses your mouth, so reduced saliva flow (from medication, mouth breathing, or dehydration) allows odour-causing bacteria to thrive.
Gum disease is a significant cause of chronic bad breath. The deep pockets that form between gums and teeth harbour bacteria that regular brushing can't reach. Untreated cavities, old dental work, and even tonsil stones can also contribute.
Solutions start with thorough oral hygiene — brush twice daily, floss daily, and clean your tongue with a scraper or your toothbrush. Stay hydrated, chew sugar-free gum to stimulate saliva, and see your dentist if bad breath persists despite good home care.
