With a view to evaluating whether and how far a fuller case documentation may contribute to a better knowledge of the real possibilities of multifilament stainless steel wires in surgery of the colon, the Authors present and discuss the results they obtained during the course of experimental research on extramucosa single-layer sutures. In the light of their personal histological documents, they emphasize the absolute biological inertia of this suture material, a property which, together with the capacity of not suffering the colliquative action of germs, means that multifilament stainless steel wires can be given full rights of domicile in colon surgery.