Stress Is Not a Recognized Trigger for Acute Diverticulitis

Guideline Position on Stress

The American College of Physicians and the American Gastroenterological Association do not list psychological stress as a precipitating factor for acute diverticulitis in their clinical practice guidelines. [1][2]

A low‑quality diet (e.g., low fiber, high processed foods) is associated with an increased risk of developing or recurring diverticulitis. [3][2]
Obesity (elevated body mass index) confers a higher likelihood of diverticulitis onset and recurrence. [3][2]
Physical inactivity (sedentary lifestyle) contributes to greater diverticulitis risk. [3][2]
Current smoking elevates the risk of diverticulitis. [3][2]
Use of non‑aspirin non‑steroidal anti‑inflammatory drugs (NSAIDs) increases diverticulitis risk, whereas low‑dose aspirin for cardiovascular prevention is considered acceptable. [3][2]
Genetic predisposition is a non‑modifiable risk factor for diverticulitis. [3][2]

Contemporary evidence indicates that diverticulitis is primarily an inflammatory condition rather than an infectious one, with no established role for psychological stress in its pathogenesis. 1

For patients with suspected diverticulitis who have not previously undergone imaging confirmation—especially those with multiple prior episodes or atypical clinical presentations—abdominal CT imaging should be obtained to verify the diagnosis. 2
When evaluating suspected diverticulitis, clinicians should follow the diagnostic algorithm outlined by the American Gastroenterological Association. [4][3]

Education efforts should focus on modifying the evidence‑based risk factors listed above (diet, weight, activity, smoking, NSAID use) rather than advising stress avoidance, as stress has not been shown to precipitate acute diverticulitis. 2