I m a 29 year old male and I have a few questions. I have made an appointment with a dermatologist but I am curious to a few things I have going on. I have quite a few flat moles that aren t raised above the surface but are irregular in shape/borders. I have noticed a small amount of possible discoloration in them. The largest one is on my back and what I thought was numb from a previous mole removed, I just realized is no where near the area of the mole I had removed. The numbness is about 1-2 inches around the mole. I m wanting to know if numbness and itching is a characteristic of cancer or not?