Indian patient (mid 70s) with chief concern tongue is turning black. Swipe for more photos. These post inflammatory changes are more common in folks with more melanin in their skin. The underlying Labial melanotic macule. B). Increased numbers of me lanocytes along Download Scientific Diagram 05 May 03 Eng Cancer patient's tongue turned black and hairy 'after rare antibiotics reaction' The Independent COM Jan. 2008 Diagnosis UW School of Dentistry