Okay so my sister has just gotten her new yorkie puppy

And she still has dew clws on 3 of her 4 legs. ( Not sure why shes missing one but who knows? )
I know that you are supposed to have them removed early on but we were thinking that when she was going to get fixed that we would just have them removed then when she was already there and everything?.
Would that hurt? I honestly don't think it would bother her but I felt the need to ask anyway
Thanks in advance!