[Diagnosis of postoperative peritonitis]

10-year experience of diagnosis of postoperative peritonitis (POP) in 106 patients is presented. Clinical deterioration, dryness in the mouth and thirst, tachycardia, bloated abdomen, hyperthermia, leukocytosis, positive Blumberg-Shchetkin symptom, intestinal paresis and rigidity of abdominal muscles were the main symptoms of POP which were revealed in 83-100% patients. Absence of drainage secretions and pneumoperitoneum don't exclude POP. Ultrasonic examination is a highly effective additional method in diagnosis of POP. When POP is suspected it makes sense to take into account opinion of surgeons who have not operated this patient.