3 acid reflux acid reflux happens when stomach acid travels upward through the esophagus a sour taste in the mouth is a common symptom of acid reflux other symptoms include: bad breath; chest. Acid reflux causes bad taste in mouth. Acid reflux believe it or not acid reflux can cause bms this is acid that has refluxed up from the stomach all the way up your esophagus and into your throat and mouth in this cause the burning sensation would come from the affect of the stomach acid that has entered your mouth, also having a bad taste in your mouth could be a sign that your.
acid reflux causes bad taste in mouth
