What is Gallstones?
Gallstones are pieces of stone-like material that form in the gallbladder. The majority of gallstones are made up of cholesterol. The rest are made up of bilirubin. Bilirubin is a breakdown pigment of the blood product hemoglobin.
Biliary colic is the pain caused by a gallstone stuck in the bile duct, a tube that carries bile to the small intestine. Sometimes, a stone caught in the bile duct causes cholecystitis (inflammation of the gallbladder). Cholangitis is inflammation of the bile duct caused by a gallstone or a bacterial infection.