Usually, the infection is localized as an abscess because the peritoneal cavity is so resistant to contamination. However, if the peritoneum is weakened or injured, inflammation and infection can spread through the peritoneal cavity. Peristaltic action decreases, leading to bowel obstruction.

How does peritonitis develop with bowel obstruction?

This part of the intestine enlarges as it fills with food, fluid, digestive secretions, and gas. The intestinal lining becomes swollen and inflamed. If the condition is not treated, the intestine can rupture, leaking its contents and causing inflammation and infection of the abdominal cavity (peritonitis.

Can peritonitis cause a bowel obstruction?

Adhesions often follow peritonitis

Adhesions are bands of scar tissue that result from previous inflammation (such as peritonitis) or surgery. They can occasionally cause strangulation and obstruction to the bowel (bowel obstruction).