Definitions
Peritonitis
Overview
Peritonitis is usually infectious and often life-threatening. It's caused by leakage or perforation in the abdomen, such as a perforated appendix. Even if the fluid is sterile, inflammation can occur.
Symptoms
Symptoms usually include pain, tenderness, rigid abdominal muscles, fever, nausea, and vomiting.
Treatments
Antibiotics are almost always needed, along with surgery or drainage.