To the Editor:rnVariations in cystic duct anatomy are quite common, but double cystic ducts arising from one gallbladder is extremely rare, which have only been reported in less than 20 cases in literature [1–4] . It is difficult to diagnose the anatomic anomaly preoperatively, and the rate of open conversion and post-operation complications were high due to ductal injury during surgery [2] . Therefore, it is im- portant for surgeons to recognize the anatomic variations preop- eratively to prevent possible complications. In this case report, we presented an extremely rare case of a patient who had double cys- tic ducts and underwent cholecystectomy without being aware of the anatomic anomaly.