Who is affected by diverticulitis

Diverticulitis tends to occur in people who eat low-fiber diets.

It is difficult to determine the exact incidence of diverticulosis (the formation of pouches in the wall of the large intestine) because most people who have colon pouches do not have symptoms. Generally, diverticulosis becomes more likely with age. It occurs in fewer than 10% of people under age 40. Of people over age 80, between 50% and 66% have the condition.1

About 20% of the people who have been diagnosed with diverticulosis develop diverticulitis, which occurs when the pouches along the large intestine become inflamed or infected. Men and women are affected almost equally.2


  1. Stollman N, Raskin JB (2004). Diverticular disease of the colon. Lancet, 363(9409): 631–639.
  2. Davis BR, Matthews JB (2006). Diverticular disease of the colon. In M Wolfe et al., eds., Therapy of Digestive Disorders, 2nd ed., pp. 855–859. Philadelphia: Saunders Elsevier.

Last Updated: July 30, 2008

related physicians

related services

Bon Secours International| Sisters of Bon Secours USA| Bon Secours Health System

This information does not replace the advice of a doctor. Healthwise disclaims any warranty or liability for your use of this information. Your use of this information means that you agree to the Terms of Use. Privacy Policy. How this information was developed to help you make better health decisions.

© 1995-2010 Healthwise, Incorporated. Healthwise, Healthwise for every health decision, and the Healthwise logo are trademarks of Healthwise, Incorporated.