I had a mole removed a long time ago, because I didn't like it. The doctor had said there was nothing wrong with it, but I told them to surgically remove it anyway, and I have had a scar ever since. Recently, however, my scar has been hurting me when I touch it, and it's starting to turn a little brown. Is it possible for moles to grow back once they've been removed? And if so, can moles be normal when they grow back and not cancerous?