Tea drinking teeth are likely to turn yellow, which may be caused by pigment deposition on the tooth surface or pigment staining the tartar, as follows. Tea polyphenols in tea may stain the teeth, and the degree of staining is related to the concentration of tea polyphenols and the soaking time of the teeth. However, staining caused by tea polyphenols is exogenous and can be removed by means such as scaling procedures. In addition, if you drink tea with low concentration of tea polyphenols or rinse your mouth with water in time after drinking, you can avoid yellowing of teeth coloring to a large extent. Daily attention should be paid to maintaining oral hygiene, adhering to morning and evening brushing, and no longer drinking tea after brushing in the evening. If the yellowing of teeth is serious, or accompanied by other symptoms, it is recommended to go to the hospital in a timely manner, with the help of the doctor for targeted treatment.