. >> dr. labow specializes in reduction surgeries.ht with controversy. >> you can have a 15 or 16-year-old more emotionally secure than 18 bra straps that bruise or chafe to the point of bleeding. >> physical social psychological, self esteem issues are decreased with this. >> how are you? great to see you. >> reporter: luckily for mackenzie her insurance covers the procedure. otherwise it would cost $10,000, trip whal the typical breast enlargement would cost. >> i would think that you would in part be able to breast-feed but we are making it a little more difficult to do so. >> reporter: for mackenzie the long-term benefits out weigh the risks. >> i want to look like a normal girl and i have never been so sure of one thing in my life that i want to do. >> reporter: the night before surgery we pay mackenzie a quick trip to her hotel room. how are you feeling? >> i'm feeling good. >> do you know what size you will be when it is over. >> maybe a d if i'm lucky, c plus d. >> mom, when you think of the surgery, what comes to mind? >> i'm