To what degree can plastic surgery change my looks.?

Plastic surgery. I don't believe that a number can be assigned. If you are pursuing plastic surgery, find a board certified surgeon with whom you can establish a good rapport so that your surgical goals are well understood.
Plastic Surgery. Plastic surgery can dramatically change one's appearance. However, it varies on the area or areas you're interested in targeting. When considering plastic surgery, find a board-certified plastic surgeon with a good before and after gallery.