Introduction: Surgical infection, particularly surgical site infection (SSI), has always been a major complication of surgery and trauma. For microbial culture and sensitivity of close cavities like blood cultures and sterile body fluids like CSF, peritoneal fluid BACTEC (Becton Dickinson Microbiology system) test is most appropriate for microbial culture and antibiotic sensitivity. Aims and objectives: Culture and sensitivity of intraoperative peritoneal irrigation fluid for prediction of post operative complication in elective and emergency abdominal surgeries. Materials and methods: This observational study was conducted for every elective and emergency abdominal surgeries for the patients attending KIMS and RF, Amalapuram, during the years from December 2016 to October 2018, For the prediction of post operative complications in elective and abdominal surgeries, the patients are divided into cases and controls, cases and controls are taken in the ratio of 1:1. Results: In case group 18 had clean contaminated, 19 had contaminated and 13 had dirty type of surgery. 1 each in clean contaminated and contaminated and 4 had complications in dirty. 33 had emergency and 17 had elective surgical procedures. Conclusion: the conclusion of this study states that there is a significant benefit in terms of prediction, prevention and timely management of post operative complications among those abdominal surgical cases.