It's not cosmetic surgery. /kloc-The difference between 0/7 years old and 23 years old is, of course, big, green, mature and the first ugly. The section is big and the teeth are ugly, so it looks uglier. Even if you look at the photos before iu, it doesn't make much difference. Think of you six years ago. Oh, iu's childhood photos are exactly the same as now. Turn it over yourself if you are interested. Besides, I'm not an iu fan.