Pigmented lips: It means that your lips contain your natural color. If concerned, check with your dentist or an oral pathologist to rule out oral pigmented lesions that result from cellular hyperplasia.
Answered 2/2/2014
4.5k views
Could be cold: Do your lips turn dark on exposure to cold? If that is the only way lips turn dark, that is a normal reaction.
Answered 3/11/2020
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