The thing I hear the most often from patients that come in concerned about a possible skin cancer is a lesion that developed and may have looked like a pimple and it was growing but then after two to three weeks it was still there and they started to wonder, "Why is this pimple not going away?" And I usually tell my patients that if there's something that's growing and it's there for about a month or longer, then it's probably not a pimple, it's probably not a spider bite, it's probably not one of these things that you think it is and it should be checked out.

Possible Signs of Skin Cancer on the Face

Dr. Michael Contreras shares some insight to what may be a sign of skin cancer.