I know I shouldn't have done this, but the the other day I was scratching and picking at a mole. I stopped, but the mole got crusty and smaller, and eventually just fell off. There was very little bleeding. However, I was wondering if scratching or picking at a mole makes it become cancerous in anyway. I'm getting checked out by a dermatologist but I'm just a little worried if picking a mole can cause it to become cancerous. Can someone help me out here? Thanks.