Mayo Clinic Health Manager

Get free personalized health guidance for you and your family.

Get Started

Free

E-Newsletter

Subscribe to receive the latest updates on health topics. View sample

Definition

By Mayo Clinic staff

Appendicitis is a condition in which your appendix becomes inflamed and filled with pus. Your appendix is a finger-shaped pouch that projects out from your colon on the lower right side of your abdomen. This small structure has no known essential purpose, but that doesn't mean it can't cause problems.

The main symptom of appendicitis is pain that typically begins around your navel and then shifts to your lower right abdomen. The pain of appendicitis usually increases over a period of six to 12 hours, and eventually may become very severe.

Anyone can develop appendicitis, but it most often strikes people between the ages of 10 and 30. The standard treatment for appendicitis is surgical removal of the appendix.

Symptoms

DS00274

Aug. 15, 2007

© 1998-2009 Mayo Foundation for Medical Education and Research (MFMER). All rights reserved. A single copy of these materials may be reprinted for noncommercial personal use only. "Mayo," "Mayo Clinic," "MayoClinic.com," "EmbodyHealth," "Reliable tools for healthier lives," "Enhance your life," and the triple-shield Mayo Clinic logo are trademarks of Mayo Foundation for Medical Education and Research.

Print Share Reprints

Text Size: smaller largerlarger