Bile is produced by the liver and enters the intestine through the bile ducts. The bile ducts are like a tree, the intrahepatic bile ducts are like branches, and the common bile ducts are like the trunk. Bile converges from the branches into the left and right branches of the bile ducts, then into the common bile ducts, and finally drains into the intestine. If there is an obstruction in the trunk and the pressure in the bile duct increases, the bile produced by the liver cannot be discharged and flows backwards into the bloodstream. When there is an explanation in the bile duct causing poor bile flow, bacteria in the intestinal tract can easily enter and multiply, producing toxins, and the body will react with chills and fever.