It can be caused by something you eat or, in more severe cases, it can mean a deeper oral health problem or a serious medical problem. Below we describe the possible causes of common bad breath as well as chronic bad breath or halitosis.
While in most cases bad breath is caused by bacteria, there are numerous health conditions that can contribute to the problem. Bad breath can be a warning sign of other illnesses. Postnasal drip, respiratory and tonsil infections, sinus problems, diabetes, liver and kidney problems, as well as some blood disorders can cause bad breath. In some cases, bad breath could be a sign of cancer and other serious illnesses, such as metabolism disorders.
- General oral health.
In most cases, bad breath is caused by poor oral hygiene. If you don’t clean your teeth and your entire mouth regularly, food particles can stay in your mouth and cause bacteria (also known as plaque) to build up on your teeth. The rough surface of the tongue and tonsils can trap food particles and bacteria in the mouth, causing the unpleasant odor of bad breath. Poor oral hygiene also causes oral health-related diseases such as tooth decay and gum disease, which are also associated with bad breath. Having consistent deep oral care habits is the best defense against bad breath.
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