staples
It shouldn't. They snip them in the middle with something like wire cutters, then remove them with tweezer-like things. Occasionally skin sticks to them a little but they usually just come right out.
Please note: I AM NOT A DOCTOR. If you want medical advice, talk to your doctor. Whatever I post, there is probably some surgeon or other health care provider somewhere that disagrees with me. If you want to know what your surgeon thinks, then ask him or her. Check out my blog.