Dental question about taxonomy:symptom:bad-breath
Bad breath, called halitosis, usually comes from odor-producing bacteria in the mouth, but gum disease, dry mouth, or another condition can also contribut.
The short answer
Bad breath, called halitosis, usually comes from odor-producing bacteria in the mouth, but gum disease, dry mouth, or another condition can also contribute.
How do mouth bacteria create an unpleasant breath odour?
Halitosis is an unpleasant odor from breath caused by bacterial breakdown of debris on the tongue, teeth, or gums.
What can you do to improve persistent bad breath?
Clean the tongue and between teeth daily, brush with fluoride toothpaste, drink water, and arrange an examination if odor persists.
When does bad breath need urgent dental care?
Persistent odor with bleeding gums, tooth pain, swelling, or fever needs dental care; breathing or swallowing difficulty is urgent.
What should your dentist check when breath odour persists?
Ask whether plaque, gum pockets, decay, dry mouth, or a nose and throat problem is most likely.
Frequently asked questions
What are the main causes of persistent bad breath?
Bad breath, called halitosis, usually comes from odor-producing bacteria in the mouth, but gum disease, dry mouth, or another condition can also contribute.
What information helps at an appointment?
Note the trigger, duration, location, and any swelling, bleeding, fever, or change in function.
Keep reading
Who wrote this page
This library is published by Dental Nation, a licensed dental group practising in the United Arab Emirates. Pages are written and overseen by the same clinical team that treats patients in our clinics, and are held to a fixed editorial standard for safety and accuracy.
This page is patient education, not medical advice, and cannot replace an examination. Anything urgent — facial swelling, trauma, uncontrolled bleeding or severe pain — needs a dentist or emergency care now.