Purpose Hepatic arterial injury is a rare but serious complication of PTBD,with a reported incidence of 1.3%-8%.In case of biliary hemorrhage resulting from arterial injury,transcatheter arterial embolization(TAE)has been proven as effective as surgery.In this study,we encountered a patient with biliary hemorrhage following PTBD due to hepatic arterial pseudoaneurysm and the bleeding was successfully managed by TAE.Materials and Methods A 55-year-old man who had the history of surgery for stomach cancer was diagnosed as malignant obstructive jaundice due to lymph node metastasis.He underwent PTBD.A stricture at the middle portion of the common bile duct was observed.A 8×60mm bare metallic stent was placed across the stricture and the repeat cholangiography showed the stent was patent.An 8.5Fr external drainage catheter was kept for 10 days before its removal.However,one month after the first PTBD,the patient underwent second PTBD for recurrent obstructive jaundice.On angiography,the middle part of the stent was occluded and a second stent was inserted.An external drainage catheter was also kept.One week after the procedure,the patient suddenly presented with severe abdominal pain,haematemesis,melena and hemobilia.Emergency angiography was performed.A pseudoaneurysm was detected in the S8 branch of the hepatic artery.The location of the pseudoaneurysm complied with the puncture route of the first PTBD.The branch was embolized with five microcoils(diameter range: 3-6mm).Results After TAE,hemorrhage did not occur.He recovered smoothly and was transferred to the oncology department for chemotherapy.Conclusion Although hepatic arterial injury is an infrequent complication of PTBD,it requires aggressive treatments as it can lead to severe hemorrhage.TAE is safe and effective in the management of this complication.