Abstract: An adhesive flange (1) for an ostomy bag (4) comprises an adhesive first surface for facing the body of a user and a second surface for facing away from the body of a user said flange defining a general plane of reference a thickness thereof being defined in a direction perpendicular thereto. The flange has an inner edge which defines an opening (2) for receiving a stoma and an outer edge which defines a plurality of radial projections. A plurality of removable easy release liners (6) cover the adhesive until the ostomy bag is ready for use. The flange encourages an effective application of the ostomy bag by a user. The ostomy bag can be used to collect waste from a stoma of an ostomate.