A suture is a medical device doctors, and especially surgeons, use to hold skin, internal organs, blood vessels and all other tissues of the human body together, after they've been severed by injury or surgery. They must be strong (so they don't break), non-toxic and hypoallergenic (to avoid adverse reactions in the body), and flexible (so they can be tied and knotted easily). In addition, they must lack the so called "wick effect", which means that sutures must not allow fluids to penetrate th… (More on Sutures)