The Common Bile Duct is a tube that carries bile from the liver and gallbladder to the small intestine. Bile is a digestive fluid that helps break down fats. This duct is an important part of the digestive system, ensuring that bile reaches the intestines when needed. The Common Bile Duct is formed by the merging of the Cystic Duct (from the gallbladder) and the Hepatic Duct (from the liver). It typically measures about 8 to 10 centimeters in length. Blockages in this duct can lead to serious health issues, such as jaundice or pancreatitis.