Biliary colic is a type of pain caused by the obstruction of bile flow, often due to gallstones in the gallbladder. This condition typically results in sudden, intense pain in the upper right abdomen, which may radiate to the back or right shoulder. The pain usually occurs after eating fatty meals and can last from a few minutes to several hours. The body produces bile, a digestive fluid stored in the gallbladder, which helps break down fats. When a gallstone blocks the bile duct, it can lead to increased pressure and inflammation, causing the characteristic pain of biliary colic. Treatment may involve dietary changes or surgical removal of the gallbladder.