Widely used in general, cardiovascular, plastic, and orthopedic surgery; polypropylene sutures do not adhere to tissue and are therefore efficient as a pull-out suture. Polypropylene sutures are relatively biologically inert, offering proven strength, reliability and versatility. Therefore, polypropylene sutures are recommended to use where minimal suture reaction is desired, such as in contaminated and infected wounds to minimize later sinus formation and suture extrusion. They are available as clear or dyed blue.