Hairy tongue


Black hairy tongue is a harmless condition. It's caused by a buildup of dead skin cells on the tiny projections that contain taste buds (papillae). Potential causes include antibiotic use and tobacco use.


Symptoms include discoloration of the tongue, a furry or hairy appearance of the tongue, bad breath, and a metallic taste in the mouth.


It often clears up without medical treatment.

Last Updated Apr 25, 2018

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