The cause halitosis can be very simple and direct. Petai beans, jengkol beans, durian fruit, garlic. But because it is not permanently, and the cause is clear, the “patient” was not serious to think about it. Habits of young children putting foreign objects, such as tissue paper, into their nose, is also can cause bacteria to gather on that tissue plug, so that after a while can cause smell. The smell is not always just on the nose, even as if from the entire body.

Kidney disorder can also cause halitosis. The patient has high level of urea, which then circulates in the blood. Through a chemical process, then results that smelly ammonia. This component then entered into the respiratory system. So the smell on the patient’s mouth is little bit smells like ammonia.

On diabetics also, if the blood sugar is uncontrolled and might be higher, it can develop halitosis. It also has typical smell. Halitosis is also caused by unchronic disease. For example, lung disorders. Chronic bronchitis patients with obstruction lung disease which is usually has already occurred secondary infections, usually suffer from halitosis too.