Laser Lip Treatment for Lip Discoloration: Patient Transformation ORAL MELANOTIC MACULE (OMM) (Also called focal melanosis labial melanotic macule) A benign, localized, flat pigmented lesion of the oral mucosa Caused by a focal increase in melanin production Melanotic macules of the tongue in a newborn Journal of the American Academy of Dermatology Definition of melanocytic macules associated with Peutz Jeghers syndrome NCI Dictionary of Genetics Terms NCI Any idea what's on my lips? : r Blackskincare AD :: Annals of Dermatology