At our Department in cases of suspected choledocholithiasis according to such criteria as jaundice, ultrasound or biochemical profile we perform ERCP. According to this in 94 (7.67% of 1226 patients scheduled for LC) were preoperatively submitted to ERCP. In 34 no CBD stones were found. In 19 stones were successfully removed. In 41 patients we were not able to extract stones and they were scheduled for open cholecystectomy. 40 patients 3 days to one year after LC were referred to ERCP because of suspected CBD obstruction. 17 had CBD stones, which were successfully removed. In 11 cases obstruction was caused by pancreatitis in another 20 no pathology in the billard tree was seen. Concluding we may say that in a hospital were ERCP is performed routinely LC can be performed in patients with CBD stones.