Staples have to be removed just like stitches do. There is a special tool that is used in the Emergency Room to remove them. People usually do not complain of a lot of pain with the removal of staples. Less chance of infection A smaller scar. Any cut will leave a scar.
Stitches involve a repair to insure the smallest and least noticeable scar.
Stitches are nothing more than a thread with a curved needle on the end. They are often made of nylon or silk. Nylon is used more often now because it seems to be less irritating to the skin. Stitches are left in for various amounts of time depending on where the cut is located on the body. This can vary from 3 to 14 days.