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.