Appendicitis is an inflammation of the appendix, which is a small, thin pouch attached to the large intestine
. The exact cause of appendicitis is not fully understood, but it is believed to be caused by a blockage in the lining of the appendix, which can cause an infection
. This blockage can be caused by various factors such as a small, hard piece of stool, a foreign body, tumor, or even worms
. The bacteria then multiply quickly, causing the appendix to become inflamed, swollen, and filled with pus. If not treated right away, the appendix can break open, leading to serious complications such as peritonitis, a serious infection