title: On call. The top of my tongue has taken on a dark brown color and a fuzzy look. I don't have a sore throat and I can taste everything, but I'm a bit worried. I am 67, and my only medications are Timoptic and Xalatan-drops for glaucoma. Can you tell me what's wrong and what to do about it?
authors.forename: Harvey B
authors.initials: HB
authors.lastname: Simon
mesh_terms: D000368:Aged; D006801:Humans; D008297:Male; D014064:Tongue, Hairy / Q000209:etiology / Q000473:pathology / Q000628:therapy