Chronic halitosis is the medical term for recurring bad breath. This may be caused by something in the mouth or elsewhere in the body. Often, the sufferer does not recognize that she has bad breath. When someone often has bad breath, it is best to seek the reason. The dentist should be the first resource for determining the cause of chronic halitosis. If dental problems are eliminated as a cause, the problem may be systemic. Most cases of bad breath can be eliminated or treated.
Food Particles
The most obvious reason for halitosis is food particles that are left to rot in the mouth. This can happen if teeth are not brushed and flossed daily. The rotting food can also lead to gingivitis (gum inflammation), which can also cause a bad smell in the mouth. Dentures are a notorious creator of chronic halitosis, as food particles are often left on them.
Periodontal Disease and Tooth Absess
Periodontal disease attacks the area around the teeth and gums. This condition can cause a bad smell to emanate from the mouth. An abscessed tooth also may be at fault.
Dry Mouth
Dry mouth, known medically as xerostomia, is another cause of chronic halitosis, reports the American Dental Association. This may occur due to improperly functioning salivary glands, nervous conditions, drug side effects or mouth breathing.
Smoking
Smoking cigarettes or other tobacco or drug paraphernalia can lead to chronic bad breath. Other use of oral tobacco products, such as chewing snuff, also may be at fault.
Smelly Food Ingestion
Eating certain smelly foods, such as onions and garlic, can create bad breath. This is due to the oils in the food, which get into the bloodstream and end up being dissipated through the lungs. This causes bad smells to be released through the mouth until all of the food is out of your system--usually in a day or so.
Respiratory Conditions
The Ohio University Medical Center explains that certain respiratory conditions may lead to chronic halitosis. Chronic sinusitis may be at fault, as well as post-nasal drip, bronchitis or lung infections. An infection in the nose or frequent nosebleeds may be the cause.
Systemic Conditions
Some patients find their bad breath is due to a serious systemic condition. These conditions may include diabetes, kidney disease, liver disease and gastrointestinal problems. People who eat so little that they have a buildup of ketones in their blood also have halitosis.
