Who can tell me what is the cause of long-term bad breath?

Can anyone tell me what is the cause of long-term bad breath? Local oral diseases are the main cause of bad breath, but it cannot be ignored that bad breath is often an oral manifestation of some serious systemic diseases, and some Organic diseases can also cause halitosis. Have you been talked about by others because of your bad breath problem? Do you dare not talk to others at close range because of your bad breath problem? Do you feel inferior because of your bad breath problem? These are common life situations for patients with bad breath. So what should you do about bad breath? How can you do it? Hold your head high and talk to others generously? Bad breath is mainly divided into two types: 1. Bad breath disease caused by immune and organ dysfunction; 2. Simple m2 oral bad breath disease. To treat bad breath, you must first understand the underlying cause of the disease before you can truly and completely cure it. There are basically two reasons for odor in the mouth: 1. Poor oral hygiene; 2. Gastrointestinal dysfunction. And no matter what the cause, the culprit is bacteria. If you go to a dentist to see a doctor, for example, if a person in a normal state is suddenly immersed in ice water, the hair-spreading function of the fur will be trapped, and the person will use the form of fever to drive away cold evil. Then symptoms of fever will appear. The same principle applies: if a stomach in a normal state is suddenly filled with ice water, the heat and descending functions of the stomach will be trapped, causing the qi and blood running in the stomach wall to solidify instantly and turn into garbage, because "Yangming Meridian governs "Dry", so the stomach will use the method of generating dry fire to clear and expel the stagnant cold evil, so symptoms such as upset, thirst, dry throat, and preference for cold drinks will appear. Since part of the function of lowering stomach qi is suppressed, varying degrees of stomach qi ascending will occur. You can use the British Fenluoyan for deep conditioning, regulating the liver and nourishing the stomach. This is also very effective for the poster to remove bad breath.