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Some of the possible common medical causes of Tongue mass may include: 1  Tongue malignancy. 2  Abscess. 3  Ateriovenous malformation.  Trauma to the 1  tongue. Antibiotic resistant staphylococcus infections. 2  Actinomycosis. Hemangioma.  Leukoplakia.
A black hairy tongue is caused by too much bacteria or yeast growth in the mouth. The bacteria build up on tiny rounded projections called papillae.ut the tongue can also turn brown, yellow, green, or a variety of other colors. Certain lifestyle habits and conditions can make people more likely to develop black hairy tongue. They include: 1  poor oral hygiene. 2  smoking tobacco.