# Breath Basics
> Bad breath has many sources, from food to tongue coating to dry mouth. A guide to the common causes and what to check first.

## Guides
- [Bad Breath From Tongue Coating](https://causes-of-bad-breath.fyfofibo.workers.dev/bad-breath-from-tongue-coating/): Bad breath from tongue coating happens because the rough surface of the tongue holds bacteria, food debris and dead cells that give off odor.
- [Bad Breath From Dry Mouth](https://causes-of-bad-breath.fyfofibo.workers.dev/bad-breath-from-dry-mouth/): Bad breath from dry mouth occurs because saliva normally rinses away food particles and bacteria, and less of it means odor builds up faster.
- [Bad Breath From Gum Problems](https://causes-of-bad-breath.fyfofibo.workers.dev/bad-breath-from-gum-problems/): Bad breath from gum problems often comes from bacteria collecting along and under the gum line, where brushing can miss them.
- [Bad Breath From Foods](https://causes-of-bad-breath.fyfofibo.workers.dev/bad-breath-from-foods/): Bad breath from foods usually comes from two sources: leftover food and bacteria in the mouth, and strong-smelling compounds that travel through the.
- [Bad Breath From Sinus or Tonsil Causes](https://causes-of-bad-breath.fyfofibo.workers.dev/bad-breath-from-sinus-or-tonsils/): Bad breath from sinus or tonsils can happen when mucus or small deposits collect at the back of the nose and throat, where bacteria break them down and release.

## About
- [About Breath Basics](https://causes-of-bad-breath.fyfofibo.workers.dev/about/): not medical advice, how the site is funded and how guides are made

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