Introduction: Despite the advances in surgical sciences post operative wound infection remains one of the common complications which surgeons encounter. This problem if not evaluated and treated in a timely manner can have significant sequel. Infection is encountered by all surgeons by nature of their crafts; they invariably impaired the first line of host defence

Methodology: The material for the present study was obtained from patient’s undergone surgery in Department of General Surgery, BMC & RI, BANGALORE, from 1st Jan 2012 to 30th June 2013. Surgical site were considered to be infected according to the definition by NNIS. The wounds were classified according to the wound contamination class system proposed by U.S. National Research Council.

Results: Incidence of infection among Emergency surgery is 26% where as among Elective is 3.33%.25 Cases (69.44%) of total infected cases had superficial SSI, 8 cases (22.22%) deep SSI and 3 cases (8.33%) had organ space infection.

Conclusion: As expected the rate of infection increased from clean wounds to contaminated wounds.