Bad breathe results from accumulation of odour producing bacteria due to improper maintenance of oral cleanliness that can further cause gum disease or even pus accumulation in severe cases. While 90% of reasons to bad breathe originate in the mouth (tooth decay, gum disease, pus in the mouth food lodgement, coated tongue etc), consumption of food containing onions and garlic, smoking, medicines and general health problems are other reasons. This is because of drying of the mouth or accumulation of several chemical compounds in the body that is breathed out. Bad breathe can thus indicate towards diabetes, liver diseases, kidney diseases, gastric problems or sinusitis.
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