Mouth odor from the stomach is possible to wonder about, but odor alone cannot locate the source.
Reflux or repeated belching may bring sour or unpleasant sensations upward. However, persistent mouth odor can also come from the tongue, gums, dry mouth, tonsils, nasal passages, or trapped food.
Try tracking two categories separately:
Mouth clues: tongue coating, bleeding gums, dryness, tonsil stones. Digestive clues: sour taste, reflux, nausea, belching, upper abdominal discomfort.
That record can make a dental or medical conversation much more useful than simply saying, “My breath smells.”



















