Due to individual differences, there is no best way to solve the problem of dry mouth and bitter mouth, dry mouth and bitter mouth may be related to indigestion, endocrine disorders, periodontitis and other factors, according to the cause of the choice of different ways of treatment. 1. indigestion: due to overfeeding, eating some indigestible food, food accumulation so that the intestinal tract can not be digested, leading to the symptoms of bitter mouth, usually pay attention to dietary modification, appropriate exercise, eat more easily digestible food rich in nutrients, to avoid eating spicy and stimulating food, can be effectively relieved. 2. Endocrine disorders: It is recommended to adjust the diet and work habits, do not eat spicy food, pay attention to rest, do not stay up late, get enough sleep every day, eat more fresh fruits and vegetables, and develop good habits. 3. Periodontitis: Due to periodontitis, there will be calculus attached to the gums and teeth, breeding bacteria, will cause bleeding gums, resulting in poor oral hygiene, there may be the phenomenon of bitter mouth, it is recommended to go to the dental hospital for scaling or periodontal scraping, will alleviate the symptoms. If the symptoms are not relieved, it is recommended to go to the hospital for examination and treatment.