Lifestyle conditions: Black or darkened lips can be caused by serious illness, such as cancer, but more often, this condition is due to lifestyle. If someone is already darker-skinned, certain behaviors like coffee or wine drinking, smoking, and sun exposure will cause the lips to turn black.
Answered 3/3/2014
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A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
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