The bile duct is the tube that carries bile from the liver to the duodenum. Stones from the gall bladder can slip into the bile duct; this can cause serious problems such as jaundice and pancreatitis. Stones in the bile duct need to be removed, either by endoscopy (ERCP) or by surgery. The endoscopic procedure is carried out at the John Radcliffe Hospital, and you will be seen by a gastroenterologist for that. For further details of the endoscopic procedure, please see the Oxford University Hospital patient information.