About 3 - 4 years ago I had a mole (or something) frozen off the back of my next. Even after the area healed, there was still a small bump on the skin -- sort of pinkish, but it blanches to mostly skin color. I recently noticed that it has gotten bigger. It's still small -- definitely smaller than a pencil eraser, and doesn't seem to look all that concerning. But I don't know why it would have continued to grow - I guess he didn't get the whole thing? I also hear that new moles after 35-40 are concerning, but I seem to have gotten several.
So here's my worry -- what if it was a melanoma several years ago when the derm froze it (he never biopsied it), but it wasn't all removed and I've been letting it grow and fester for 3 - 4 years?