Random dark marks on lips : r Blackskincare Oral Melanotic Macule MEDizzy Oral Melanotic Macule: Symptoms and Treatment Skinsight Any idea what's on my lips? : r Blackskincare 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. Pigmented Lesions of the Oral Cavity Oral and Maxillofacial Surgery Clinics