Lip pigmentation Should I get a 2nd opinion about these freckles on my lips from another dermatologist? Last time they say it's just sun spots but the bottom one in particular still keeps me Labial melanotic macule Pigmented Lesions of the Oral Mucosa Pocket Dentistry Oral Pigment lesions My Doctors An oral melanotic macule is a harmless dark spot found on the lip, most often the lower lip, or inside the mouth, either on the gums, inside the cheek, or on the roof of the mouth. An oral melanotic