Bad breath may be caused by bad dietary habits, oral diseases, gastric diseases, etc. You should consult a doctor to find out the cause of the disease.
1. Bad dietary habits: If you often smoke, drink alcohol, drink coffee, eat some stimulating foods and fatty foods, such as stinky tofu, it will lead to a decrease in the secretion of the salivary glands, resulting in the phenomenon of bad breath.
2. Oral diseases: common oral diseases are gingivitis, periodontitis, dental caries, endodontics, wisdom teeth, pericoronitis, etc., after suffering from these oral diseases, not only will cause significant pain, but also due to the stimulation of inflammatory factors will lead to the growth of bacteria in the oral cavity, which will cause bad breath phenomenon.
3. Stomach diseases: such as functional dyspepsia, chronic gastritis, Helicobacter pylori infection, etc., will affect the gastrointestinal peristalsis and digestion and absorption, which will lead to the phenomenon of bad breath.
However, other factors can not be ruled out, it is recommended to consult a doctor in time, by the doctor to clarify the cause of the disease, to give targeted treatment.