The key is to look for changes in a mole, says Kaufman, a surgical oncologist and melanoma expert. Those changes may include asymmetry, size, color and bleeding.
It’s important to see a dermatologist if you’re concerned about a mole, Kaufman says.
“Most skin cancers actually develop rather slowly,” he says. “Even the deadliest form of melanoma can take up to a year to really develop and establish itself. Therefore if you see the dermatologist on a regular basis, you’ll likely be able to detect most skin cancers early.”