Melanin Definition, Types & Function

Medicinema on Instagram: "Black tongue from birth is a rare congenital condition where the tongue appears black or darkly pigmented due to excess melanin deposition. But Black hairy tongue is a temporary, harmless and fairly common condition in which the top of your tongue looks hairy. Hairy tongue has marked accumulation of keratin on the filiform papillae on the dorsal surface of the tongue, giving a hair-like appearance Drinking lots of coffee and tea Tobacco use. Heavy alcohol use Certain me