What Are These Dark Spots on My Lips?, You mightve noticed small, flat, dark spots on your lips and wonderedare they dangerous?, Most of the time, the answer is no!, These are called benign Does anyone know what this black mark on my lip is? Started last August so it's I've had it nearly a year, was living in Spain at the time for 6 months Smoker's melanosis Wikipedia A Black Spot on the Upper Gum for Many Years: Melanotic Macule Springer Nature Link An oral melanotic macule is a harmless dark spot found on the lip, most often the lower lip, or inside the mouth, either on the gums, inside the cheek, or on the roof of the mouth. An oral melanotic