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Last update 23 Jan 2025

Black Hairy Tongue

Last update 23 Jan 2025

Basic Info

Synonyms

Black hairy tongue, Black hairy tongue (disorder), Black tongue

+ [31]

Introduction-

Clinical Trials associated with Black Hairy Tongue

NCT01864837

/ Unknown statusNot ApplicableIIT

Availability of Tongue Diagnosis System for Assessing Tongue Coating Thickness of Patients With Functional Dyspepsia: Study Protocol for Comparative Trial With Conventional Method

The aim of the proposed study is to investigate the agreement between the measurement of the tongue diagnosis system (TDS) and the conventional way of tongue diagnosis about the tongue coating thickness (TCT) in the tongue diagnosis of the traditional Korean medicine (TKM).

Start Date01 Feb 2013

Sponsor / Collaborator

Korea Health Industry Development Institute

NCT02764060

/ CompletedEarly Phase 1IIT

The Effect of Tongue Scraping Compared to Tongue Cleaning on the Tongue Coating of Periodontitis Patients

The aim of this study was to examine in periodontitis patients with visible tongue coating the changes in microbial load (aerobic and anaerobic) of the 14 day use of a tongue scraper versus the use of a regular toothbrush to clean the tongue.

Start Date01 Jan 2011

Sponsor / Collaborator-

100 Clinical Results associated with Black Hairy Tongue

100 Translational Medicine associated with Black Hairy Tongue

0 Patents (Medical) associated with Black Hairy Tongue

116

Literatures (Medical) associated with Black Hairy Tongue

03 Dec 2024·Cureus

Olanzapine-Induced Black Hairy Tongue During Treatment of Hebephrenic Schizophrenia Decompensation: A Rare Case Report and Brief Review of the Literature

Article

Author: Lopes, Elisa ; Couto, Maria B ; Fonseca, João B ; Ortiga, Rita

Black hairy tongue (BHT) is a benign, self-limiting, and usually asymptomatic condition, characterized by abnormally hypertrophied and elongated filiform papillae on the surface of the tongue. In this article, we present the case of a woman diagnosed with hebephrenic schizophrenia who developed BHT after using olanzapine to treat an acute episode of the disease. The temporal coincidence between the development of BHT and the increase in olanzapine dosage to 20 mg daily suggests a likely dose-dependent relationship, making this psychotropic drug the most probable cause of this condition. Although its etiology remains undefined, several factors have been suggested, namely antipsychotics and cannabinoids, likely due to the xerostomia they induce. In this patient, BHT was successfully treated by improving oral hygiene and discontinuing the use of olanzapine and cannabinoids.

23 Nov 2024·Cureus

Black Hairy Tongue Observed During Esophagogastroduodenoscopy

Article

Author: Tanaka, Takehiro ; Otsuka, Motoyuki ; Iwamuro, Masaya

Black hairy tongue, also known as lingua villosa nigra, is a benign oral condition characterized by a dark discoloration and "hairy" appearance on the tongue's dorsal surface, resulting from elongated filiform papillae. This condition is associated with risk factors such as smoking, poor oral hygiene, and diabetes, which increase susceptibility to microbial colonization, particularly by Candida species. Although commonly diagnosed by visual inspection, black hairy tongue is infrequently observed during endoscopic procedures. We report a case of a 69-year-old Japanese man with poorly controlled type 2 diabetes (hemoglobin A1c of 9.7%) and a significant smoking history of 49 pack-years. During a routine esophagogastroduodenoscopy, a dark lesion was detected on the dorsal surface of the tongue. Detailed imaging and biopsy revealed elongated papillae with fungal hyphae, confirming a diagnosis of candidiasis. This case underscores the value of esophagogastroduodenoscopy and histopathological examination in diagnosing black hairy tongue and distinguishing it from other pigmented lesions. Recognizing black hairy tongue as a potential finding during endoscopy may aid in prompt diagnosis, especially in patients with predisposing factors like smoking and diabetes.

23 May 2024·Current Drug Safety

Drug-induced Tongue Disorders: A Comprehensive Literature Review

Article

Author: Sabouri, Salehe ; Amiri, Shiva ; Nikvarz, Naemeh

Background::Some drugs cause tongue disorders as adverse effects. Most of the druginduced tongue disorders are benign and will resolve after drug discontinuation. However, the changes in the color or appearance of the tongue may frighten patients and decrease compliance with drug therapy.Objective::To review the literature to find all reports of drug-induced tongue disorders, their presentation, management, and outcome of patientsMethods::The search was conducted in Google Scholar and PubMed using key words “ageusia,” “burning tongue,” “coated tongue,” “drug-induced taste disturbances,” “dysgeusia,” “glossitis,” “glossodynia," “hairy tongue,” “hypogeusia,” “stomatodynia,” “stomatopyrosis,” “swollen tongue” “tongue discoloration,” “tongue irritation,” “tongue numbness, “tongue oedema,” and “tongue ulcer. All reports that were published from 1980 to 2022 in the English language were included in the study. Reports that were not in English language but had English abstracts with adequate data for extraction were also included.Results::A total of 208 case reports and case series were included. The most reported drug classes were antineoplastic and immunomodulating agents and anti-infectives for systemic use, and the most common tongue disorders were tongue discoloration and black hairy tongue. Having good oral hygiene and discontinuing the offending drug could manage and resolve the problem.Conclusion::Drug-induced tongue disorders are not rare adverse drug reactions. They are benign in most cases, and withholding offending agents results in significant improvement or complete resolution of tongue lesions.

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