After abdominoplasty, patients sometimes comment that their belly button is not in the mid-line or is crooked. This is actually not that uncommon. In an abdominoplasty, the belly button is actually left attached to the abdominal wall and the abdominal wall tightened around it. The excess skin is then pulled down and a new hole is made in the skin overlying the belly button (where it actually is and lies underneath that abdominal flap) and the belly button is brought through that hole and sewn in place. Surgeons generally mark the midline and put the belly button there as best they can; however, people are generally not symmetrical from side to side. We put the belly button where it lies and frequently this is not exactly in the midline. There was actually a paper published a number of years back in the plastic surgery literature that documented that belly buttons are NOT midline sutures (i.e. they don't necessarily fall in the midline). You should check back with your surgeon, but it's entirely possible it wasn't in the middle before, and couldn't be put there based on your surgery and anatomy.
