http://www.everydayhealth.com/appendicitis/guide/causes/ Everyday Health, Causes of Appendicitis, July 22, 2014 http://www.everydayhealth.com/appendicitis/guide/causes/ http://www.everydayhealth.com/appendicitis/guide/causes/ http://www.everydayhealth.com/appendicitis/guide/causes/