PDF) Labial Melanotic Macule Diagnosed by Dermoscopy Oral Mucosal Melanosis IntechOpen Pigmented Lesions of the Oral Mucosa Springer Nature Link Treatment of labial melanotic macules on the lip. These are benign spots that appear on the lips for no apparent reason. The causes are mostly genetic, but similar spots can appear in smokers, after Pigmented (Purple or Brown) Lesions in the Mouth Pigmented (Purple or Brown) Lesions in the Mouth Kazemi Oral Surgery Facialart.com MELANOTIC MACULE