Bad breath: the real causes and how to fix them

Almost everyone has bad breath sometimes, especially in the morning. Persistent bad breath (halitosis), however, usually has a cause that can be treated.

Common causes in the mouth

• Bacteria on the back of the tongue.
• Food trapped between teeth.
• Gum disease.
• Cavities and broken fillings.
• Infection around a wisdom tooth.
• Dry mouth — from mouth breathing, some medicines or not drinking enough water.

Other causes

Smoking and hookah, strong foods such as garlic and onion, fasting, sinus problems and, less often, stomach or general health conditions.

How to fix it

1. Brush twice a day and clean your tongue from back to front.
2. Clean between teeth every day.
3. Drink water regularly.
4. Chew sugar-free gum after meals.
5. Have a professional cleaning and check-up.

Mouthwash is not a cure

Mouthwash can cover the smell for a short time but doesn’t remove the cause.

When to see the dentist

If bad breath stays despite good cleaning, or comes with bleeding gums, pain or a bad taste.

Try the gum health check — it includes questions about breath.