May is Skin Cancer Awareness Month, and Crista Wenisch, dermatology provider in Big Lake, MN, talks about something she get asked about all the time — moles. Most people have between 10 and 40 of them, and the vast majority are totally harmless. But knowing what to look for isn't about scaring yourself. It's about knowing your skin well enough to notice when something changes. That's where the ABCDEs come in.