Please confirm that you are not located inside the Russian Federation
The link you have selected will take you to a third-party website. We do not control or have responsibility for the content of any third-party site.
Gallstones are usually composed of cholesterol that has crystallized from bile. They form in the gallbladder or in the bile ducts. They may leave the gallbladder and lodge in the cystic duct, the common bile duct, or the ampulla of Vater.