Acute cholangitis is a superimposed clinical syndrome on an obstruction of the biliary tree most commonly from a gallstone, characterized by fever, jaundice, and abdominal pain that develops as a result of stasis and infection in the biliary tract.Most remnants are the result of acute cholangitis. Acute cholangitis by the non-surgical treatment, acute inflammation under control, but did not solve the bile duct due to the primary disease (such as inside and outside the liver bile duct stone, biliary stricture disease or Oddi sphincter, etc.), bile duct inflammation to chronic bile duct wall lesion thickening. Exist because of obstructive diseases, bile duct obstruction allows bacteria to ascend from the duodenum, diameter of 2 ~ 3cm, even 5cm. When the bile duct obstruction into a complete or add to one of bacterial infection, they can cause acute inflammatory episodes. Repeated acute attacks, will further aggravate chronic inflammation of the bile duct lesions, particularly at the lower end of oddi sphincter nipple duct and intrahepatic bile ducts within the branch, after repeated after the acute attack, often caused by fibrous scar tissue distal bile duct hyperplasia and stenosis, as well as intrahepatic bile duct branches in the paragraphs of the environment a more narrow emphasis on the liver so both inside and outside the extent of bile duct obstruction.