EN
Aerobic and anaerobic bacterial flora of post-operative incisions with drainege were examined. From each of 28 patients three specimens were taken; during operation (smear from peritoneal cavity), liquid from drain (taken at 3-th day after operation) and smear from drain taken at the end of drainage. Enterococci, Enterobacteriaceae spp. and anaerobes, especially Bactericides spp. were most often isolated from specimens taken during operation. Enterococci and caogulasenegative Staphylococci - often resistant to methicillin, were most often isolated from specimens taken at the end of drainage.