Acute suppurative peritonitis is divided into primary peritonitis and secondary peritonitis according to the pathogenesis. Primary peritonitis (also known as spontaneous peritonitis), no primary lesions in the abdominal cavity. The pathogens are mostly hemolytic streptococcus, pneumococci or Escherichia coli. Secondary peritonitis is the most common peritonitis. Perforation of abdominal organs and traumatic abdominal wall or visceral rupture is the most common cause of acute secondary suppurative peritonitis.