Well, the same thing happens with your skin – with your body, you can stitch it up with this special thread, and that's what I mean here when I say " I might need stitches."

嗯，同样的事情也会发生在你的皮肤上——你的身体，你可以用这种特殊的线把它缝起来， 这就是我说“我可能需要缝针” 的意思。