A kit for collecting stool, comprising an adapter (1) for connecting the anus or a perianal stoma of a user to a peripheral device, said adapter comprises a flexible adhesive plate (2) having first through going hole, a flexible tube (3) extending from a first opening (11) to a second opening (12) and a first flexible coupling plate (4) having a second through going hole, wherein the flexible tube is attached to the flexible adhesive plate in an area surrounding the first opening and the flexible tube is attached to the first flexible coupling plate in an area encircling the second opening, allowing fluid communication from the first through going hole to the second through going hole through the flexible tube, and a peripheral device (20, 60) for coupling to the adapter.