白舌是舌头上由碎片、细菌和死细胞组成的覆盖物，使舌头看起来白色。虽然出现白舌可能让人担心，但这种情况一般无害且只是暂时出现。然而，白舌可能意味着感染乃至癌前状况等严重的医疗状况。
如果您为舌头上的白色覆盖物或白色斑点而担心，请联系医生或牙医。
白舌总体上无害，用牙刷或刮舌器轻刷舌头以及多喝水可能对其有效。
如果出现以下情况，请与医生或牙医约诊：
显示参考文献
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Original article: https://www.mayoclinic.org/zh-hans/symptoms/white-tongue/basics/when-to-see-doctor/sym-20050676