The short answer to this question is no. The vast majority of moles will not become cancerous. However, there are certain types of moles that are more likely to become cancerous than others. “Atypical moles” or moles that have atypical features such as irregular borders, multiple colors, being large in size or having elevated portions are more likely to become cancerous and should be watched closely for changes. If you have a large number of moles (greater than 40 to 50) you are at higher risk of your moles becoming cancerous. In cases like these, it is especially important to follow good sun protection guidelines and see your doctor if you think there may a problem with one of your moles.
Mark Callery, DO
Family Medicine, Skin Care
Utica Park Clinic – Owasso
10512 N. 110th East Ave., Suite 200
Owasso, OK 74055