The most relevant epidemiological data concerning different form of pe
ritonitis are reviewed taking into account that secondary peritonitis
are those of major interest for surgeons. A review of the literature c
oncerning the epidemiology of peritonitis secondary to peptic ulcer pe
rforation, appendicitis, hollow viscus perforation after endoscopic pr
ocedures, colonic perforation and postoperative peritonitis is given.
Some details about primary peritonitis and peritonitis occurring in AI
DS patients are discussed as well.