I've been there before. I asked him what it is, and he said that it's nothing really. I even asked my doctor about it, and he said that it's not harmful, but if you really don't know what to think of it, then use a condom, or just don't have sex, and wait to see what else the doc can say. Can he go in for surgury to get it removed? It's not contagious right? If it's not then you don't really have anything to worry about. He's just being a man and letting you know before hand incase you should happen to think about it later on.
Best of luck
