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Peritonitis

What is peritonitis?

Peritonitis is a redness and swelling (inflammation) of the tissue that lines your belly or abdomen. This tissue is called the peritoneum.  

Peritonitis is a serious, deadly disease.

What causes peritonitis?

Peritonitis is caused by an infection. Bacteria can enter the lining of your belly from a hole in your GI  (gastrointestinal) tract. This can happen if you have a hole in your colon or a burst appendix.

Other causes of peritonitis include:

  • A hole in your stomach, intestine, gallbladder, uterus, or bladder
  • An infection during treatment for end-stage kidney or renal disease (peritoneal dialysis)
  • Pelvic inflammatory disease in women
  • Surgery (if bacteria enter your belly during surgery)

What are symptoms of peritonitis?

Each person’s symptoms may vary. Symptoms may include:

  • Severe belly pain that gets worse with any motion
  • Nausea and vomiting
  • Fever
  • Sore or swollen belly
  • Fluid in the belly
  • Not being able to have a bowel movement or pass gas
  • Less urine than normal
  • Thirst
  • Trouble breathing

Peritonitis symptoms may look like other health problems. Always see your health care provider to be sure.

How is peritonitis diagnosed?

It’s important to find out right away if you have peritonitis. It can lead to severe health problems very quickly.

Your health care provider will look at your past health. He or she will give you a physical exam.

Other tests for peritonitis may include:

  • X-rays. Imaging tests that make pictures of your body’s tissues, bones, and organs.
  • Blood, fluid, and urine tests. These tests are done to find out what is causing the infection.
  • CT scans (computed tomography scans). These imaging tests use X-rays and computer technology to make pictures of the body. CT scans show detailed images of any part of the body. This includes bones, muscles, fat, and organs. They are more detailed than standard X-rays.
  • Surgery. If you are very ill, you may have surgery to find and remove what is causing the infection.

How is peritonitis treated?

It’s important to seek medical care right away. Peritonitis can lead to serious health problems very quickly.

You will be admitted to a hospital. You will be given IV (intravenous) infection-fighting medicines (antibiotics) or antifungal medicines. These will treat the infection.

If you have organ failure, you may also be given other treatments.

Emergency surgery is often needed to find and remove what is causing the infection. This is done when the infection may be caused by:

  • Redness and swelling (inflammation) of your appendix (appendicitis)
  • An open sore in your stomach or intestine (perforated peptic ulcer)
  • Swelling in small pouches in your colon (diverticulitis)

What are the complications of peritonitis?

Peritonitis can cause severe health problems. It can be deadly if not treated right away.

Peritonitis can make fluid fill up in your belly or abdomen. This can cause severe fluid loss or dehydration.

If peritonitis isn’t treated the infection can quickly spread through your body. This can create an extreme response from your infection-fighting system (immune system) called sepsis.

Sepsis is a fast-moving, serious condition. It happens when chemicals sent into your bloodstream to fight the infection cause swelling (inflammation) over a large part of your body. This can slow blood flow and hurt your organs.

Severe sepsis can cause your body to go into shock. It can lead to organ failure and death.

When should I call my health care provider?

Peritonitis can cause severe health problems. It can be deadly if not treated quickly. Call your health care provider right away if you have any symptoms of peritonitis.

Key points about peritonitis

  • Peritonitis is a redness and swelling (inflammation) of the lining of your belly or abdomen. This lining is called the peritoneum.
  • It is often caused by an infection from a hole in the bowel or a burst appendix.
  • You must seek medical care right away.
  • You will be admitted to a hospital. You will be given IV (intravenous) infection-fighting medicines (antibiotics) and antifungal medicines to treat the infection.
  • Peritonitis can lead to serious health problems. It can be deadly if not treated right away.

 

Next steps

Tips to help you get the most from a visit to your health care provider:
  • Before your visit, write down questions you want answered.
  • Bring someone with you to help you ask questions and remember what your provider tells you.
  • At the visit, write down the names of new medicines, treatments, or tests, and any new instructions your provider gives you.
  • If you have a follow-up appointment, write down the date, time, and purpose for that visit.
  • Know how you can contact your provider if you have questions.
Online Medical Reviewer: Berry, Judith, PhD, APRN
Online Medical Reviewer: Sohrabi, Farrokh, MD
Date Last Reviewed: 11/1/2013
© 2000-2015 The StayWell Company, LLC. 780 Township Line Road, Yardley, PA 19067. All rights reserved. This information is not intended as a substitute for professional medical care. Always follow your healthcare professional's instructions.
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