Journal of Oral Science Research ›› 2024, Vol. 40 ›› Issue (9): 757-761.DOI: 10.13701/j.cnki.kqyxyj.2024.09.001

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Research Progress in Etiology and Pathogenesis of Hairy Tongue

WU Sihua, CHEN Qianming*   

  1. State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & National Key Laboratory of Oral Mucosal Diseases & Innovation Unit of Oral Mucosal Carcinogenesis and Prevention, Chinese Academy of Medical Sciences & Department. of Oral Medicine, West China Hospital of Stomatology, Sichuan University, Chengdu 610041, China
  • Received:2023-11-29 Online:2024-09-28 Published:2024-09-25

Abstract: Hairy tongue is a hairy lesion on the dorsal surface of the tongue that can be stained by food, tobacco, or microorganisms, resulting in a variety of colors such as white, tan, and black. Hairy tongue is a kind of benign lesions that can cause halitosis, dry mouth, aesthetic problems, so that patients’ quality of life is reduced. At present, the pathogenesis of hairy tongue has not been clarified. This review summarizes current studies on the etiology and pathogenesis of hairy tongue, which may be related to metabolic abnormality of filiform papillae, oral microbiota imbalance, immune abnormal phenomenon, and use of certain drugs.

Key words: hairy tongue, black hairy tongue, etiology, pathogenesis