This can lead to bad breath the primary cause of acid reflux in most people is a faulty or relaxed lower esophageal sphincter (les) the les is a valve-like muscle (like a thick rubber band) that. Acid reflux cause of bad breath. Specifically, bad breath can come about when one is dealing with acid reflux this happens due to the acid rising up all the way up and coming up to the back of your throat coating the entire back of your throat, the acid can produce a rather foul odor when you breathe in and out of your mouth.
acid reflux cause of bad breath
