Acute diseases of the abdominal cavity have always been one of the basic directions of activity of most surgical wards. Regardless of the progress of medicine in more and more refined treatment of most diseases, acute appendicitis or perforated diverticulitis will require surgical treatment. In recent years we have seen a lot of changes in surgical technique. The introduction of laparoscopic surgery changed approach to many diseases. Patients undergoing laparoscopic surgery return much faster to health, full activity and work. The postoperative course is also better. Practically the next day the majority of patients is running and gets food.

The biggest change in operating tactics in recent years, occurred in the treatment of complicated diverticular disease. Currently, there is a dominating view that the operation “acute” should be changed to planned surgery. It is not always possible, but often succeed. In case of peritonitis in a perforated diverticulitis is often enough to perform laparoscopic peritoneal lavage with drainage and delay the resection until the improvement of the general condition of the patient. It significantly improves the outcome of complicated diverticular disease.