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Appendicitis

Appendicitis is an inflammation of the appendix that occurs most often in people between the ages of 10 and 30. Appendicitis is considered a medical emergency, and treatment often involves surgery to remove the appendix. If appendicitis treatment is delayed, the appendix can burst, causing infection and even death. Possible symptoms of appendicitis include abdominal pain, fever, and constipation.

 

Appendicitis: An Overview

Appendicitis is an inflammation of the appendix. Once appendicitis begins, there is no effective medical therapy. Therefore, appendicitis is considered a medical emergency. When appendicitis is treated promptly, most patients recover without difficulty. However, if treatment is delayed, the appendix can burst, causing infection and even death. Although anyone can get appendicitis, it occurs most often in people between the ages of 10 and 30.
 

Understanding the Appendix

The appendix is a small, tube-like structure that is attached to the first part of the large intestine, also called the colon. The appendix is located in the lower right portion of the abdomen, near where the small intestine attaches to the large intestine, and it has no known function. Removal of the appendix appears to cause no change in digestive function.
 

Causes of Appendicitis

Appendicitis can be caused by a blockage of the inside of the appendix, known as the lumen. Common causes of blockage include:
 
  • Feces
  • Infections that lead to swelling
  • Trauma.
     
(Click Causes of Appendicitis for more information about what causes appendicitis.)
 

Common Symptoms of Appendicitis

Not everyone with appendicitis has related symptoms, especially:
 
  • People with certain medical conditions
  • Women who are pregnant 
  • Children (see Appendicitis in Children)
  • The elderly.
     
Pain in the abdomen can be an early symptom of appendicitis. The pain may first appear around the belly button and then move to the lower right area of the abdomen.
 
(Click Early Appendicitis Symptoms for more information.)
 
Other common symptoms of appendicitis include:
 
  • Pain that intensifies when moving, taking deep breaths, coughing, or sneezing
  • Loss of appetite
  • Nausea
  • Vomiting
  • Constipation or diarrhea
  • Inability to pass gas
  • Low fever that begins after other symptoms
  • Abdominal swelling
  • Feeling that a bowel movement will relieve discomfort.
     
These possible appendicitis symptoms can be caused by other medical conditions, however. People who have possible symptoms of appendicitis should see a qualified physician immediately.
 
(Click Appendicitis Symptoms for more information.)
 
(Appendicitis Continued: Page 2)
Written by/reviewed by: Arthur Schoenstadt, MD
Last reviewed by: Arthur Schoenstadt, MD