There are several complications after biliary-intestinal anastomosis surgery: 1) bile leakage, which is caused by poor wound healing at the anastomosis site after surgery, resulting in bile leakage into the abdominal cavity; 2) dilatation of the intrahepatic bile duct, which is caused by local inflammatory stimulation, making the anastomotic interface narrow, resulting in no normal bile drainage, so that Bile may accumulate in the bile ducts and cause dilatation; 3. Inflammation of the bile ducts may occur due to reflux of intestinal fluid or solution in the intestine, which requires timely anti-inflammatory treatment to prevent purulent reaction from endangering the wounds and affecting healing. Therefore, once the above symptoms appear, you should pay attention to them and promptly consult a doctor for appropriate treatment.