Tongue astringent dry mouth, may be with gastrointestinal dysfunction, lingual inflammation, dry syndrome and other diseases caused by the need for timely medical attention. 1. Gastrointestinal dysfunction: caused by irregular diet, irregular work and rest, affecting the normal function of the stomach and intestines. The tongue is dry, astringent and so on. It is recommended that the patient go to the hospital to do gastric fluid analysis and gastroscopy if necessary. It needs to be examined and treated according to the specific etiology. Usually need to eat a light diet and relieve mental stress. 2. Tongue inflammation: related to the patient’s anemia, endocrine disorders, or taking a large number of antibiotic drugs. Patients appear tongue congestion, redness, swelling, dryness, astringency, pain and so on. Need to promptly find out the cause of the disease, such as anemia is a lack of vitamins, to timely supplement vitamins. 3. Dry syndrome: related to infection, endocrine factors. Patients will also have dry mouth, dry eyes, tongue pain and other symptoms. Under the guidance of the doctor to take glucocorticosteroids such as prednisolone cotrimoxazole, anti-malarial drugs such as hydroxychloroquine and so on for treatment. Tongue astringency and dry mouth should pay attention to the daily diet, timely examination in the hospital, under the guidance of the doctor for treatment. The use of drugs should follow the doctor’s instructions.