In the period 1946-1987 at the former Second Surgical Clinic of the Medical Faculty in Belgrade 25 patients with a biliary ileus were Surgically treated, 20 females (80%), and 5 males (20%), aged from 53 to 87 years, (mean 67 years). Six patients were decade, 7 in 7th, 9 in 8th, and 3 in 9th decade. In only 8 patients biliary calculosis had been confirmed earlier. Preoperative troubles in the Bowel Passage lasted 1-7 days, (mean 3 days), mostly as in incomplete gut occlusion. Preoperative diagnosis of the biliary ileus, using x-ray, was exact only in 3 cases (12%), while other remaining patients underwent Surgery diagnosed as ileus of the small bowel or acute abdomen. In 7 patients a stone obstructed the jejunum, in 6 ones its widpart and in 10 cases the terminal ileum. In 23 patients an enterotomy distally to the obstruction with an expulsion-extraction was done, in one patient a partial resection of the gut and in another patient a manual stone expulsion into the colon, with no enterotomy, was carried out, and after operation the stone was removed from the rectum. The Bilio-digestive fistula was never treated either the surgery itself, or later. Complications arised in 13 patients: wound infection in 11, deep thrombophlebitis in one and a pneumonia in two patients. An average hospitalization was 27 days, and all patients Survived.