I have this light brown spot on the inside of my left hand middles finger. The spot is no bigger than the width of pensil shaft. Im a 15 year old boy and i know it is super rare for kids to have cancer, but i thought i might just check. The spot is below the joint in the middle of my middle finger. It doesnt buldge out and isnt painful. Its level with the skin around it and feels the same as the skin around it? Can anyone help?