Melanotic macule. Benign. Dark spot on labia (or lip). Analogous to lentigo simplex. Hyperpigmented basal keratinocytes & dermal melanophages. Slight in single basal melanocytes; NO nests. More info like this in Genital Pigmented Lesions Journal of Urological Surgery Not every dark spot 'down there' is dangerous but some can be Many women notice small brown or black spots on the vulva called melanotic macules. These are usually harmless, flat, Vulvar Melanotic Macules DoveMed Melanocytic Lesions of the Vulva Clinical Tree Clinician's Update on the Benign, Premalignant, and Malignant Skin Tumours of the Vulva: The Dermatologist's View Sand 2017 International Scholarly Research Notices Wiley Online Library