Obesity and sedentary lifestyle increase the formation of stones in the biliary tract. Choledochal stent placement with endoscopic intervention in cases of choledochal stones and bile leakage has been a common procedure in gastroenterology practice in recent years. Intervention for post-op biliary strictures is increasing in parallel with the number of liver transplantations. Stent placement procedures for palliation of primary or metastatic malignant processes of the biliary tract also contribute to the comfort of life of patients. In this article, brief information about the stents used in the biliary system is presented.