Hi doctor, Several years ago, I had a flat, brown mole on the inner side of my lower lip. I am not sure whether it appeared suddenly or I just noticed it later after some days. I went to my dermatologist and she said it was a mole. She might have said freckle and that it was not anything to worry about. Since then, it faded in color until it just disappeared one day. It probably disappeared a few years later. I have not had any mole that disappeared. Is this regression of any concern?
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