No!

Okay should explain myself XD
Little me banged the computer (...) and found a little page fact something, something... where they said that Sujus Eunhyuk was said to be the ugliest one in Super Junior. No I'm not going to be nice now but THE FUCK?! HOW THE HELL can you say that?! O___O

First phrase: nobody is perfect, I'm still a bit scarred for life on the macro where he went all crazy (eyes plopping out) with Taemin XD But no, he ain't ugly!!
He even wanted to do some cosmetic surgeries but didn't, because he didn't want to "remove" his natural beauty and that's good boi!!

That guy is freaking gorgeous the way he his!~

  

Who said his ugly?! You just come here and I will !&(%#%"½ *Piiiiip*
Actually if he wanna do a surgery or anything in general of course I'll support him, I'll support anyone.
I don't really care if he/she personally want to do it. But I get mad, sad and rag(e)y when people call them ugly and they decide to change their looks because of that. You shouldn't get influenced by people that easily!

If you, really YOU deep insinde want to make a surgery on your liking then do it :)
As long as you feel fine and want it without other people influences then that's good! (y) So it's good that he didn't do any brutal surgeries (can't really say that he's pure because you never know what SM can make these guys go through to look pretty -.-)