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The appendix is a small, tube-like organ attached to the first part of the large intestine. It is located in the lower right part of the abdomen. It has no known function. A blockage inside of the appendix causes appendicitis. The blockage leads to increased pressure, problems with blood flow, and inflammation. If the blockage is not treated, the appendix can burst and spread infection into the abdomen. This causes a condition called peritonitis.

The main symptom is pain in the abdomen, often on the right side. It is usually sudden and gets worse over time. Other symptoms may include

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Illustration of an infected appendix
Results 1 - 10 of 147 for appendicitis
  1. Appendicitis (National Library of Medicine)  
    ... function. A blockage inside of the appendix causes appendicitis. The blockage leads to increased pressure, problems with ... to pass gas Low fever Not everyone with appendicitis has all these symptoms. Appendicitis is a medical ...
  2. Appendicitis (Nemours Foundation)  
    ... Manage a Serious Allergic Reaction Quiz: Baseball Injuries Appendicitis KidsHealth > Teens > Infections > Stomach & Intestinal Infections > Appendicitis Print ... out, had appendicitis and needed surgery. What Is Appendicitis? Appendicitis is an inflammation of the appendix. The ...
  3. Appendicitis in Teens (American Academy of Pediatrics)  
    ... Conditions > Abdominal > Appendicitis in Teens Health Issues Listen Appendicitis in Teens Article Body Early adolescence is prime ... it has no known function. Symptoms that Suggest Appendicitis may Include: Persistent abdominal pain that migrates from ...
  4. Appendicitis (For Parents) (Nemours Foundation)  
    ... Free Health Lessons Social Media: Connect With Us Appendicitis KidsHealth > Parents > Infections > Stomach & Intestinal Infections > Appendicitis Print ... the easier it will be to treat. About Appendicitis The appendix is a small finger-like organ ...
  5. Appendicitis (Nemours Foundation)  
    ... Body Works Main Page The Pink Locker Society Appendicitis KidsHealth > Kids > Illnesses & Injuries > I Feel Sick! > Appendicitis ... would it need to be removed? What Is Appendicitis? Your appendix (say: uh- pen -dix) is a ...
  6. Appendicitis From the National Institutes of Health (National Institute of Diabetes and Digestive and Kidney Diseases)  
    ... PDF: Appendicitis​ (PDF, 362 KB)​​​​​ Alternate Language URL Appendicitis Definition and Facts for Appendicitis ​Appendicitis is inflammation ...
  7. Appendicitis is swelling (inflammation) of the appendix. The appendix is a small pouch attached to the large ... Appendicitis is a very common cause of emergency surgery. The problem most often occurs when the appendix ...
  8. Appendicitis From the National Institutes of Health (National Institute of Diabetes and Digestive and Kidney Diseases)  
  9. ClinicalTrials.gov: Appendicitis From the National Institutes of Health (National Institutes of Health)  
  10. Appendicitis (Mayo Foundation for Medical Education and Research)  
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