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 Oral pigmented lesions: Clinicopathologic features and review of the literature A collection of resources for RACGP exams Next Gen GP Text Book live webinars AKT and KFP questions What Caused These Multiple Hyperpigmented Macules of the Mouth? COM March 2009 Diagnosis UW School of Dentistry