Abstract: A one-piece bag connector for an ileostomy bag, colostomy bag or the like comprises an annular body portion, lip portion and a belt attachment. The body portion is adapted to surround a stoma of a user and the lip portion is connectable to a bag such that material may be discharged from the stoma to the bag without leakage. The body portion is made of resilient material and directly contacts the user thus avoiding the use of any gels or adhesive materials. The belt attachment connects a belt to the body portion such that a slight pressure is exerted against the user. This pressure plus the resilient nature of the body portion assures a proper seal between the user and the bag connector. Further, an easily attachable/detachable snap or screw connection is provided between the lip portion and the bag to assure a proper seal as well as convenience and ease in changing and/or removing the bag.