The positive rate of bile bacteria was 88.9%, the major general of bacteria were E. coli, Pseudomonas aeruginosa and Enterococcus.

• 胆汁细菌培养阳性率为 88.；9%25；主要菌种有大肠埃希菌、铜绿假单胞菌、肠球菌；肠球菌比率较高 ;