One of the most dangerous and potentially fatal complications of appendicitis is peritonitis. The essence of the pathology lies in the spread of the inflammatory process of the abdominal cavity. The pathological process develops in various tissues, it all depends on the main focus of the lesion. In the case of appendicitis, the inflammatory process often affects the pelvic tissue and nearby tissues: the sigmoid colon, the appendix, and the cecum. This pathology can have very serious complications, namely it can lead to the following complications: - peritonitis, -