The abdominal cavity contains the main parts of the gut, such as the stomach and intestines. It also contains other organs such as the liver and kidneys.
The peritoneum lines the abdominal wall but also forms folds that go inward. By folding in, the peritoneum weaves between abdominal organs, providing a membrane that protects and stabilizes the organs in the abdomen.
The folds of the peritoneum also contain blood and nerve supplies. These vessels can be seen running through the membrane that secures the intestines.
The symptoms of peritonitis are serious. They need urgent medical attention in a nearby emergency room or an ambulance callout.
People who develop peritonitis while already in hospital need urgent attention.
The main symptom is sudden, severe stomach pain that gets worse.
Some effects of peritonitis are related to serious effects in the body such as dehydration and shock. Other symptoms include:
fever
nausea and vomiting
diarrhea
loss of appetite
fast heart rate
inability to pass stool or gas, and difficulties passing urine