The usual suspects
The tongue's back surface harbors bacteria that produce sulfur compounds, the actual smell. Gum disease, decaying food in deep pockets, poorly fitting restorations, and dry mouth all amplify the problem.
When it is not your mouth
Sinus infections, post-nasal drip, reflux, and tonsil stones account for most non-oral cases. Certain diets and conditions produce characteristic odors. If a dental exam finds a healthy mouth, your physician takes over the search.
What works and what does not
Tongue scraping daily, flossing, treating gum disease, and staying hydrated address causes. Mouthwash covers odor for an hour or two; alcohol-based rinses can worsen it by drying tissue. Treat the source, not the air.
When to get checked
If bad breath persists despite good home care, book an exam. A gum screening and decay check will either find the source or rule the mouth out, and both answers move you forward.
Key takeaways
- •Clean your tongue, not just your teeth.
- •Gum disease is a leading hidden cause.
- •Persistent cases deserve an exam, not more mouthwash.
This article is general information, not a diagnosis. Your situation deserves an exam.