Hi Terri, The biggest risk of an untreated hernia is that contents pass through the wall, get stuck there and that their blood supply is cut off by being constricted at the neck of the hernia. This is most likely for hernias which are 'Goldilocks-sized' - that is, big enough for stuff to get into them, but small enough for the neck to cause a constriction. It's also most relevant for hernias of something important, like a loop of small bowel, rather than a bit of intra-abdominal fat. Umbilical hernias such as yours are really common and almost always consist of intra-abdominal fat, making them of very little consequence. It's not impossible that they will cause a problem but quite unlikely, and in the UK we don't routinely recommend their repair with no ill-effect from the thousands of unrepaired umbilical hernias. On the other hand, it will definitely not get better spontaneously, so if you want your belly button to be restored to how it used to be then you would need to undergo surgical repair. Sometimes these hernias are obvious and at other times they are an incidental finding during tummy tuck, in which case I just repair them as part of the procedure.