What is the cause of acute appendicitis disease?

What is the cause of acute appendicitis disease.
Etiology 1: appendix lumen obstruction. Appendix as part of the human body, its manifestations is a narrow and elongated conduit in the human body, and only one is connected to communicate with the cecum, the other end is a closed shape. In healthy people, the placement and the contents of the appendix cavity from the cecum, appendix wall in under creeping through the entire discharge. But once because of certain factors, cause the appendix to bureaucratic obstruction, then the contents of the appendix cavity backlog will be stored, can not be discharged. Basis of acute appendicitis disease. Location appendix lumen obstruction mostly appendix tail (root), sometimes appear in the middle and distal portion of the appendix.
Etiology 2: infection of bacterial invasion. One end of the appendix in our body cavity is interlinked with the cecum, because of the ground, have registered with cecal appendix cavity cavity similar species and the number of registered bacterial species E. coli and anaerobic bacteria based. Methods fungi invade the appendix wall is usually simple and straightforward, once appendix slight mucosal injury, bacterial who will quickly invade damaged mucosal surface by the wall, then deep progressive development of ultra appendix wall, and thus lead to varying degrees infection.
Etiology 3: other reasons. Acute appendicitis with our daily life is closely related to many factors. Induced etiology of acute appendicitis and our daily living habits, eating habits, frequent diarrhea / constipation, and genetic factors are closely related.