Mystery behind labial and oral melanotic macules: Clinical, dermoscopic and pathological aspects of Laugier Hunziker syndrome Oral Melanotic Macule: Symptoms and Treatment Skinsight 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 Melanotic macules of the tongue in a newborn Journal of the American Academy of Dermatology Oral Mucosal Melanosis IntechOpen