Gallstones cause problems such as pain, yellowing of your skin and the whites of your eyes (jaundice), inflammation of your pancreas (pancreatitis), and gallbladder inflammation. They occur when bile, which is normally fluid, forms stones. Gallstones commonly contain lumps of fatty (cholesterol-like) material that has solidified and hardened. They may also contain bile pigments and calcium deposits. These stones can block the bile duct, causing pain.
This is a companion discussion topic for the original article at https://patient.info/medicine/ursodiol-actigall-urso