The gallbladder is a small sac that stores and concentrates bile, a bitter fluid that aids in the emulsification of fats. In some people, small, pebble-like masses composed chiefly of cholesterol, calcium salts, and bile pigments form in the gallbladder or bile ducts. The presence of gallstones can lead to painful obstruction or infection and is sometimes treated with cholecystectomy, the surgical removal of the gallbladder. How does a procedure called lithotripsy break up gallstones? Discuss
Source: The Free Dictionary