The cause of most cancers of the biliary tract is unknown. There are a number of risk factors that may increase your risk of biliary tract cancer development. These include:
People who have inflammatory bowel disease a chronic inflammatory bowel condition called ulcerative colitis have an increased risk of developing this cancer.
Biliary tract abnormalities who were born with (congenital), abnormalities of the biliary tract, such as choledochal cysts have an increased risk of developing cholangiocarcinoma.
Infection in Africa and Asia, infection with a parasite called the liver fluke is believed to cause many types of cancer of the biliary tract.
Although the aging of bile duct tumors can occur in younger people, more than two thirds occur in people older than 65 years.
Bile duct cancer, like other cancers, is not contagious and can not be transmitted to others.
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