Halitosis - Bad breath - Bad odor from mouth

What - It is a condition characterized by an unpleasant or foul odor originating from a person's mouth when they exhale.

It can be a temporary or chronic issue.

Why -
Poor Oral Hygiene, Failure to maintain cleanliness of tongue, Dental Issues, Food and Beverages, Dietary choices, Dry Mouth, Smoking, Acidity reflexes, Medical Conditions