IU is a naturally pretty girl, who helped herself along with a nose job and eye widening surgery. Although she already had a small nose, she elected to have rhinoplasty. Her current nose is slightly smaller, more upturned at the tip, and slopes in a way that almost never occurs in nature (aka the “ski jump”). When she smiles, you can sometimes see some creasing going on around the nostrils, which is a dead giveaway for a nose job.
As for her eyes, I think you’ll agree that in her JYP audition video, her eyes look smaller. I think she probably had her eye corners cut to widen her eyes.
There are other rumors flying around about possible jaw surgery. This might be true, but it’s very hard to know for certain. Nevertheless, IU is far from natural!
Before and after pics