People with medical infections, diabetes, kidney failure, or liver failure may also develop bad breath. Dry mouth (dry mouth) and tobacco are also responsible for this problem. Cancer patients receiving radiation therapy may experience dry mouth. Even pressure, diet, snoring, age and hormonal changes can affect your breathing. Odor from the back of your tongue may indicate dribble after the nose. This is a mucus discharge from the nose, which flows down the throat and sticks to the tongue, causing odor.
