Bad breath can happen to just anyone. Everyone worries about bad breath from time to time especially after a spicy meal or a cup of coffee. In fact, about 9 percent of people reported having bad breath within the past 6 months, according to the Centers for Disease Control and Prevention (CDC).
About 10 percent of people with bad breath also have problems— like an infection,pneumoniaor bronchitis— with their nasal cavity, sinuses, throat or tonsils. Some may havegastroesophageal reflux disease(GERD), diabetes, or liver or kidney conditions. An overgrowth of yeast in the mouth, known as oralcandidiasisor thrush, can also be a source of bad breath.