I have a genetic predisposition to being at higher risk for skin cancer, so I see a dermatologist for an annual skin exam. I had a mole on my arm that looked different from all of the others and my dermatologist had said we should keep an eye on it. About two weeks ago I noticed that it was changing: it was darker and starting to have uneven borders. What really frightened me was when I happened to notice in a photo of me from 2013 that it wasn’t even on my arm! It’s not normal to grow new moles when you’re over forty. I called her office to be seen and she agreed that it should be biopsied.