Appendicitis causes

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Farwa Haideri [2]


Common causes of appendicitis include obstructive fecaliths, parasitic or bacterial infections of the appendix, trauma, and lymphadenitis.


Common Causes

Common causes of appendicitis include:[1]

  • Foreign bodies
  • Trauma
  • Intestinal worms
  • Lymphadenitis
  • The occurrence of an obstructing fecalith
    • The occurrence of a fecalith in the appendix seems to be attributed to a right sided fecal retention reservoir in the colon and a prolonged fecal transit time.[2]
  • Low dietary fiber intake
    • Several studies offer evidence that a low fiber intake is involved in the pathogenesis of appendicitis.[3][4][5]
    • This link between low fiber intake and appendicitis is in accordance with the occurrence of a right sided fecal reservoir and that dietary fiber reduces fecal transit time.[6]
  • Appendicolith
  • Ascariasis
  • Bacteroides
  • Taenia infection


  1. Appendicitis. Wikipedia (2016). Accessed on February 29, 2016
  2. Raahave D, Christensen E, Moeller H. Origin of acute appendicitis: Fecal retention in colonic reservoirs: A case control study. Surg Infect 2007;8:55-61
  3. Burkitt DP, Walker ARP, Painter NS. Effect of dietary fibre on stools and transit-times, and its role in the causation of disease. Lancet 1972;300:1408-12
  4. Adamis D, Roma-Giannikou E, Karamolegou K. Fiber intake and childhood appendicitis. Int J Food Sci Nutr 2000;51:153-7
  5. Hugh TB, Hugh TJ, "Appendicectomy — becoming a rare event?" MJA 2001; 175: 7-8
  6. Gear JSS, Brodribb AJM, Ware A. Fibre and bowel transit times. Br J Nutr 1981;45:77-82

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