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Halitosis (bad breath)

Bad breath, also known as halitosis, is usually the result of poor oral hygiene. If bacteria builds up in a person's mouth, it can cause their breath to smell.
Causes of bad breath
Bad breath has a number of possible causes including, poor oral hygiene, food and drink, smoking and drinking alcohol, crash dieting and certain types of medication.
Treating and preventing bad breath
Treating bad breath will depend on what is causing it. If your bad breath is caused by poor dental hygiene, improving your dental hygiene will help cure the problem.