Biliary stents are widely used as an alternative treatment for benign biliary obstruction, choledocholithiasis, biliary fistulas or leak from the cystic duct after cholecystectomy. They occupy a special position in the palliative treatment of malignant biliary strictures. Like any other treatment method, this one also has its complications. Most often it is the development of stent obstruction and jaundice or cholangitis. Less common complications include proximal or distal biliary stent migration. The authors describe a case study of one of the possible complications of migrated biliary stent. Key words: biliary stent - migration - complications - treatment.