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Appendicitis is an inflammation of the appendix, a narrow tube that comes out from the colon on the lower right side of the abdomen. The appendix has no known/confirmed purpose. Appendicitis mostly occurs in people between ages 15 and 30 years, and although anyone can develop appendicitis, it rarely occurs in children younger than 2 years old. Appendicitis happens more often in males than in females.
The condition is probably a result of a blockage in the appendix’s lining, which then causes an infection. Bacteria increase and cause the appendix to become inflamed, swollen and filled with pus. Severe abdominal pain needs urgent medical care because the appendix can burst if not treated promptly. A burst appendix is a serious complication, since the infection can move into the abdomen.