".....And certainly the first combs looked a little different than nowadays, and- made ​​of rough stone ..."

Man created combs, so we can change and modify as we wish, and use it for our grooming.

But Human beings were created by God (we didnt create ourselves, neither can we create our souls). Hence, if we go under the knife (surgery) just for purpose of beautifying and adornment, then it means we are tampering with the creation..