Doctor Sheds Light On Uncommon Black Hairy Tongue Condition

Follow KDKA-TV: Facebook | Twitter
By: Michael Nedelman, CNN
(CNN) — When Dr. Yasir Hamad heard that a patient’s tongue had turned black, he decided he needed to see it for himself.
“It was the typical textbook case” of a condition known as black hairy tongue, said Hamad, an assistant professor in the Department of Medicine at the Washington University School of Medicine in St. Louis. Hamad published the case Wednesday in the New England Journal of Medicine.
Despite the n