Hemobilia is defined as hemorrhage into the biliary tract and occurs when injury or disease cause communication between the biliary tract and blood vessels. The causes of hemobilia are trauma (accidental, iatrogenic), inflammation, gallstone, neoplasm, and vascular lesions. Currently, the mos common cause of hemobilia is trauma. Specially, iatrogenic causes are considered as the mos important. Iatrogenic cause of hemobilia has increased now because invasive procedures such as liver biopsy, biliary drainage (PTBD, ERBD) were popular. We experienced 2 cases of iatrogenic hemo bilia developed after exchange of ERBD stent.