A stomal implant comprising a longitudinal portion configured to envelop at least a section of the bowel or ileal conduit, said longitudinal portion comprising: a proximal end for positioning at a stomal opening a distal end for positioning within an abdomen and a reversibly pressure-exerting device providing an ascending pressure gradient from the distal end to the proximal end, such that pressure exerted at the proximal end provides complete closure of the bowel or urethra.
