Introduction: Peritoneal paracentesis is a simple, accurate and bedside procedure. This requires an appropriate sized needle attached to a disposable syringe which isavailable everywhere. The basic principle is that in many cases of acute abdomen,there is collection of fluid in the peritoneal cavity. Methodology: All patients who present with acute abdomen including blunt trauma toabdomen and post-operative cases are included for study and those who give consentfor study. A total of 50 cases were studied during the period. Results: In  the present study there were 46 positive taps, among them 35 cases were non-traumatic and 11 cases were traumatic. Out of 35 cases in nontraumatic group, 04 cases were gastric perforation, 20 duodenal perforation, 05 ileal perforation, 02 jejunal perforation, 01 caecal, 01 appendicular perforations, 01 transverse colon and 01 sigmoid colon perforation. Of the 11 cases in traumatic group 08 were due to solid organ injury, 02 gastric perforation and 01 jejunal perforation noted. Conclusion: Diagnostic abdominal tap is extremely reasonable diagnostic aid