The causes of bad breath are very many, such as poor living and eating habits, oral diseases, nasopharyngeal diseases, metabolic abnormalities, digestive diseases and so on.
1. Poor living habits: usually do not like to brush your teeth, or prefer to eat heavy food, such as onions, garlic, leeks and other stimulating foods, can cause temporary bad breath. In addition, long-term alcohol, long-term smoking, etc., will lead to bad breath.
2. Oral disease: long-term not love brushing teeth may lead to food debris decay, easily will lead to oral bacteria itself, induced dental caries, gingivitis, gingivitis, apical inflammation, mouth ulcers and other diseases, thus causing bad breath.
3. Nasopharyngeal diseases: nasopharyngeal cavity is more, suffering from pharyngitis, maxillary sinusitis, or purulent tonsillitis and other diseases, due to the blockage of the cavity, can also lead to food spoilage, bacterial growth, thus inducing bad breath.
4. Abnormal metabolism: some diseases can cause odorants to enter the blood circulation, and then breathe through the lungs, thus causing bad breath, such as uncontrolled diabetes, renal failure, liver failure and so on.
5. Digestive diseases: reflux gastritis, reflux esophagitis, dyspepsia, gastric ulcer, duodenal ulcer, or chronic gastritis, etc., due to the difficulty of digesting food in the stomach, resulting in the accumulation of food in the stomach, which in the long run will cause bad breath.
There are many causes of bad breath, and it is recommended that the patient should correct the bad habits, and if accompanied by other symptoms, it is recommended to consult a doctor in time to make a clear diagnosis and give targeted treatment.