A system for anal and/or stomal irrigation comprising: a reservoir for an irrigating liquid; a catheter comprising a catheter tip for insertion into the rectum or stoma of a user, the catheter being configured for expelling of the irrigating liquid from the catheter tip, the catheter further comprising an expandable retention element for fixation of the catheter tip within the user's rectum or stoma; a tubing system providing a first conduit for the irrigating liquid between the reservoir and the catheter and providing a second conduit for the irrigating liquid between the reservoir and the expandable retention element; a valve system in the second conduit for controlling the flow of the irrigating liquid between the reservoir and the expandable retention element; a pump operable to pump the irrigating liquid from the reservoir to the catheter tip, characterized in that the pump comprises a reversible pump, which is operable in one direction to pump the irrigating liquid into the expandable retention element for inflation thereof, and which is operable in a reverse direction to withdraw the irrigating liquid from the expandable retention element for collapsing thereof; and the pump and the valve system being controllable to selectively: - pump the irrigating liquid into the expandable retention element for expansion thereof; - pump the irrigating liquid through the catheter for expelling of the irrigating fluid from the catheter tip and into the user's rectum or stoma; - withdraw the irrigating liquid from the retention element for purging thereof. a reservoir for an irrigating liquid; a catheter comprising a catheter tip for insertion into the rectum or stoma of a user, the catheter being configured for expelling of the irrigating liquid from the catheter tip, the catheter further comprising an expandable retention element for fixation of the catheter tip within the user's rectum or stoma; a tubing system providing a first conduit for the irrigating liquid between the reservoir and the catheter and providing a second conduit for the irrigating liquid between the reservoir and the expandable retention element; a valve system in the second conduit for controlling the flow of the irrigating liquid between the reservoir and the expandable retention element; a pump operable to pump the irrigating liquid from the reservoir to the catheter tip, characterized in that the pump comprises a reversible pump, which is operable in one direction to pump the irrigating liquid into the expandable retention element for inflation thereof, and which is operable in a reverse direction to withdraw the irrigating liquid from the expandable retention element for collapsing thereof; and the pump and the valve system being controllable to selectively: - pump the irrigating liquid into the expandable retention element for expansion thereof; - pump the irrigating liquid through the catheter for expelling of the irrigating fluid from the catheter tip and into the user's rectum or stoma; - withdraw the irrigating liquid from the retention element for purging thereof. - pump the irrigating liquid into the expandable retention element for expansion thereof; - pump the irrigating liquid through the catheter for expelling of the irrigating fluid from the catheter tip and into the user's rectum or stoma; - withdraw the irrigating liquid from the retention element for purging thereof.