Gastritis, lung & sinus infection may also be the cause of bad smell in the mouth. 90% of bad breath is due to a dirty tongue.
The bacterial film called “plaque†that occurs naturally in your mouth can build up if not removed regularly through good oral hygiene practices. The bacteria in plaque give off an odour that affects your breath.
Diet is a common bad breath culprit. Foods such as garlic and onions, in particular, can foul your breath. Once your food is digested, chemicals t ...
Read Complete Answer