Iatrogenic lesions of the hepatocholedochus are among the most serious complications of upper abdominal surgery. They present the surgeon with difficult problems: unsuccessful attempts to reconstruct easily lead to irreparable liver damage and situations which can no longer be controlled surgically. Consequently, the corrective operation decides the fate of the patient. Contrary to general opinion, we attempt the ideal bilibiliary end-to-end anastomosis over the large T-drain after mobilization of the stump of the biliary tract even in larger defects. With proper mobilization, even defects of the hepatocholedochus up to 4 cm long can be bridged. Naturally, preparation of the distal limb of the bile duct requires adequate surgical experience. We have performed 40 bilibiliary end-to-end anastomoses in 37 patients. Examination and follow-up examinations showed, apart from one death and three reoccurrences of stenosis, satisfactory results in every respect: The successful bilibiliary end-to-end anastomosis is superior to all other corrective measures.