The postoperative infections is the common surgical complication in department of Gynecology and Obstetric. The degree of wound contamination and the classification of surgical site infections at the time of surgery plays an important role. The use of antibiotic prophylaxis has significantly decreased but not completely eliminated this undesirable result. Broad spectrum antibiotics should be started as soon as possible upon diagnosis of postoperative infection; most patients respond to treatment within 24 to 48 hours when appropriate antibiotics are selected. Postoperative infections include the vaginal cuff cellulitus, pelvic cellulitus, adnexal infection, ovarian abscess, pelvic abscess, abdominal incision infection and toxic shock syndrome and they are the head of our study.