|Black Hairy Tongue (Lingua Villosa Nigra)
What is Black Hairy Tongue?
Black Hairy Tongue is the name given to the appearance of an abnormal coating of the tongue.
It is a benign disorder characterised by thickening of the filiform papillæ (these are mushroom-shaped projections
covering most of the top surface of the tongue) of the tongue. A brownish-black discoloration of the papillæ occurs.