2torial #0761: Learn2 Cope with Bad Breath (continued) Make sure you're healthy If your dentist says that your mouth is clean and healthy, but your bad breath persists, there's a small chance that a medical condition may be causing the problem. Respiratory tract infections and diabetes, as well as liver and kidney ailments have been known to cause bad breath, and can be checked by your doctor. -end- Learn More! or All steps at once (printable version)