Hello and welcome to MedHelp's forums. Thanks for your question. Your advice is to get a doctor to take a look. This article describes what to look for and when to worry. There are atypical moles that do not lead to cancer but some do. Things to look for are asymmetry, border, color, diameter and evolution. When these are not that of a common mole, it's in your best interest to be evaluated. A dermatologist would be a good person to see.