Gallstones can form in the Gallbladder due to an imbalance in the constituents of bile, therefore predominantly are made of bile pigments and/or cholesterol but are commonly mixed stones.
The Gallbladder is a sac, which stores bile and lies beneath the liver. Bile is made by the liver and contains bile pigments, bile salts, lipids and cholesterol and is released into the duodenum (first part of the small bowel) to help digest fats. The large majority of patients with gallstones have little or no symptoms.
If symptoms do present from gallstones they are usually as a result of complications of gallstones and are described below.