The indications for diagnosis and treatment of choledochoscopy were edited and reported

1. Intrahepatic and extrahepatic bile duct stones.
2. Bile duct stenosis or bile enterostomy stenosis.
3. Space occupying lesions of biliary tract.
4. Biliary tract malformations.
5. Roundworms and foreign bodies in biliary tract.
6. Biliary tract complications after liver transplantation.