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Bad breath
Bad breath, also called halitosis, is caused by bacteria that grow in your mouth. The bacteria gather on the small food pieces left in your mouth, especially between your teeth. The bacteria release sulfur compounds, which is what makes your breath smell. Strong smelling foods such as garlic and onions can cause bad breath, and so can smoking.
Tips for preventing bad breath:
Don’t smoke! It is good for your health in many ways to avoid smoking. Check out our section on Tobacco.- Brush your teeth (and tongue!) for at least 2 minutes twice a day with a fluoride toothpaste, especially after meals.
- Floss every day.
- Replace your toothbrush every 3 to 4 months.
- Visit your dentist twice a year for cleanings and an exam to check for cavities.
- Eat right. Avoid foods and drinks that can cause bad breath such as cabbage, garlic, raw onions, and coffee. Don't diet. Not eating enough or cutting out certain foods (such as carbohydrates) can cause bad breath.
Bad breath that won’t go away can also be a sign of a medical problem, such as a sinus infection or gum disease (gingivitis).
Be sure to talk to your dentist if your bad breath does not go away. It's normal to be embarrassed, but it’s a very common problem and a dentist can help you try to fix it.
Content last updated June 18, 2008
