Halitosis may originate in from other areas of the body other than the mouth. It’s unclear about the role of gum disease in causing halitosis, but bacteria growing below the gum line often have a strong odor upon removal. The nose is the second major source for halitosis. Odor exiting from the nostrils differs from odors originating orally. Nasal odor is typically caused by sinus infections or foreign bodies.Decomposition of the tonsils can also be a source of halitosis, although it is generally considered a minor source. https://vaperoyalty.com/category/e-liquid/shop-by-brand/bad-drip/ An estimated small percentage does experience small bits of calcified material that often accumulates in the pockets of their tonsils. These small bits smell extremely foul when removed but they do not necessarily cause bad breath.
Some believe that bad breath originates in the stomach and not the mouth. However, most researchers consider the stomach as a very unlikely source for bad breath; however, belching is a different story. Typically the esophagus is a closed flat tube and a simple release of gas or foul smelling air, as is the case in a burp is typically no concern nor is it considered bad breath. A prolonged release of odor of fluid from the stomach however could be an indication of reflux or other serious conditions and should be checked.There are also systemic or non-oral conditions that may cause halitosis but they are typically infrequent. Such conditions include carcinomas, kidney infections, respiratory infections, Diabetes and liver failure.