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 Tiny brown spot on the lip? Don't ignore it. A melanotic macule is a small, well circumscribed brown to black oral lesion most commonly seen on the lower lip and a high yield ADC exam favourite. Labial Lentigo (labial melanotic macule) Cancer Therapy Advisor Labial or Oral Melanotic Macule Benign, asymptomatic, and often underdiagnosed. Swipe to learn how to recognize, diagnose, and manage this simple yet important lesion! #thebasicdentist #rguhs #kuhs #tnmgrmu #OralPathology #MelanoticMacule #DentalFacts