What cause Acute Appendicitis?

There is a lot of myth surrounding the cause of Acute Appendicitis.

Many people will attribute some kind of foreign body stuck in the lumen of the Appendix giving rise to Acute Appendicitis.

In fact, they are half correct, whereby most Acute Appendicitis do arise from something stuck in the lumen.

But instead of some weird kinds of foreign bodies imagined like chili seeds and the likes, most often what is found stuck in the lumen is patients own feces.

Feces of varying consistency from soft to hard is regularly discovered during Appendectomy like the case in the picture.

The Fecal Stone(Faecolith) is the dark object shown next to the Appendix.