An ostomy pouch arrangement, comprising an adapter, the adapter having a cup shaped body with an annular side wall and a baseplate. The baseplate of the adapter has an opening for receiving a stoma. The arrangement further comprises a belt connected to the adapter for wearing the arrangement on a subject’s body. The adapter has an interface opposite the baseplate for connecting to an ostomy waste pouch inlet. The adapter is further provided with fastening means for tightening the belt around the subject’s body to the adapter. The adapter has a continuous raised edge at a circumference of the baseplate in a direction facing the subject’s abdominal wall.
