Lip melanotic macula Hoogstra Medical Centers Labial Macules: Dark Spots on the Lip Dermatology Advisor 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 Spotty lips. These are labial melanotic macules, kinda like freckles on the lips. They are mostly due to age and sun exposure, but sometimes they run in families and are associated with 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