MONDO_0004522 (infectious peritonitis) is inflammation of the peritoneum due to infection by bacteria or fungi. Causes include liver disease, perforation of the gastrointestinal tract or biliary tract, and peritoneal dialysis. Patients usually present with abdominal pain and tenderness, fever, chills, and nausea and vomiting. It is an emergency medical condition that requires prompt medical attention and treatment. Also known as: acute generalised peritonitis, acute generalized peritonitis, primary bacterial peritonitis, retractile mesenteritis.