Conclusion The cause of cholelithiasis is closely correlated with the SO wriggle direction and the NDS length, there are no obvious relations whether ductus pancreaticus and bile duct are the common channels or not; 结论胆石病的形成与SO蠕动方向异常及NDS长度过长密切相关,与胰胆管共同通道无明显关系;