Why easy biliary stenosis secondary bile duct stones?

Biliary obstruction or narrowing of the lumen and fine. Narrowing of biliary bile not give unimpeded access to the gallbladder storage, postprandial not duodenal smooth inflow of food digestion, thereby creating cholestasis, cholestatic biliary enable bacteria stays in breeding. Bacteria stay in the process can produce a lot of enzymes, bacteria biliary inflammation may also release a large amount of enzyme, These two enzymes called beta-glucuronidase activity. This enzyme can be normal bile of water-soluble conjugated bilirubin dissociation of free bilirubin, Free bilirubin and bile can be a combination of calcium to form insoluble calcium bilirubin water particles. Bilirubin calcium particles collected bile of macromolecular material, such as bacteria, mucus, shedding of biliary epithelial cells. biliary stenosis in the state of circulation and condensation to form gallstones. Biliary strictures and stones in the development of the disease often reinforce each other.