Bile Duct Diseases
What Is It?
Your gallbladder stores bile until you eat, then releases bile into your small intestine to help digest food. Bile is made in the liver. It contains a mix of products such as bilirubin, cholesterol, and bile acids and salts. Bile ducts are drainage "pipes" that carry bile from the liver to the gallbladder and from the gallbladder to the small intestine.
A variety of diseases can affect your bile ducts. All block the bile ducts in some way, which is why the various diseases cause similar symptoms.
Gallstones are the most common cause of blocked bile ducts. Stones typically form inside the gallbladder and can block the common bile duct, the drainpipe at the base of the liver. If the duct remains blocked, bilirubin backs up and enters the blood stream. If bacteria above the blockage accumulates and backs up into the liver, it may cause a severe infection called ascending cholangitis. If a gallstone stops in between the gallbladder and the common bile duct, an infection called cholecystitis may occur.