Aggravated tongue does not heal itself. There are many causes of tongue astringency, and the specific cause of the symptom should usually be identified and treated. Tongue astringency can be caused by a variety of factors, such as a large number of tartar in the mouth, most of them are deposited in the jaw, the tongue body long-term contact with tartar, resulting in the tongue often astringent, and even some people will experience pain. Endocrine disorders can also lead to changes in the environment of the bacterial flora in the mouth, making the tongue often astringent phenomenon. In addition, diabetes and gastrointestinal diseases can also cause a feeling of astringency on the tongue. You can go to the stomatology department for examination first, if there is no pathological change in the oral cavity, then combined with other symptoms of the body for examination, and ultimately according to the different causes of the disease should be taken different treatment methods. If you have astringent tongue, you should drink enough water, eat less spicy, stimulating and greasy food, and get enough sleep.