Lithogenic bile has the following properties -

Bile salts and phospholipids in bile keep cholesterol in solution by the formation of micelles. An excess of cholesterol relative to bile salts and phospholipids allows cholesterol to form crystals and such pile is called Lithogenic or super-saturated bile. Pathogenesis of Cholesterol gallstones There are three elements necessary for the formation of cholesterol gallstones Lithogenic bile Nucleation and Stasis or gallbladder hypomotility