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Appendicitis Symptoms and Causes

Appendicitis is an irritation, inflammation and infection of the appendix (a narrow, hollow tube that branches off the large intestine). The appendix functions as a part of the immune system during the first few years of life. After this period, the appendix stops functioning and other organs continue to help fight infection. Although the appendix does not seem to serve any purpose, it can become infected and, if untreated, can burst, causing more infection and even death.