What Causes Bad Breath (Halitosis)?

The most common causes of bad breath (halitosis), the warning signs to look for, and when to seek help.

Persistent unpleasant breath that often has an oral cause and can usually be treated. Understanding what causes bad breath (halitosis) is the first step to preventing and treating it.

The most common causes include gum disease, poor oral hygiene, dry mouth, diet. Often more than one factor is involved, which is why a proper assessment matters.

Watch for symptoms such as ongoing bad breath, a bad taste, dry mouth. If these persist or worsen, it is worth booking an appointment rather than waiting.

The good news is that bad breath (halitosis) is very manageable, especially when caught early. Our clinicians will explain the cause in your case and recommend a clear plan.

Frequently asked questions

Can bad breath (halitosis) be prevented?

Often, yes. Addressing the common causes — such as gum disease — and keeping up regular check-ups greatly reduces the risk.

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