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Abdomen | ct / colonoscopy / contrast-enema

Diverticulosis

Diverticulosis means the colon has small outpouchings called diverticula. It is common, especially with age, and may be found incidentally on CT. The word diverticulosis alone does not mean infection or inflammation.

In many reports, this wording is a clue for your doctor to interpret rather than a diagnosis by itself. The overall concern level depends on the surrounding findings, and follow-up is often guided by symptoms, prior scans, or whether the area is changing over time.

Diverticulosis means small pouches are present in the colon wall, often found incidentally on abdominal imaging.

How concerning it may be

The report describes diverticulitis, abscess, perforation, or surrounding inflammation

What may happen next

Diverticulosis alone usually needs no imaging follow-up

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What it means

Diverticulosis means the colon has small outpouchings called diverticula. It is common, especially with age, and may be found incidentally on CT. The word diverticulosis alone does not mean infection or inflammation.

Also seen as: colonic diverticulosis, diverticular disease.

If you are trying to place this wording inside the bigger picture of your report, start with the radiology findings hub and then compare it with the related symptom and report phrase pages below.

What matters most on a report

This term becomes more or less important depending on its size, location, severity, associated symptoms, and whether it is new compared with earlier imaging. Radiologists usually expect the finding to be read alongside the rest of the report instead of in isolation.

How common it is

Diverticulosis is a very common age-related abdominal finding.

Very common age-related bowel finding

Diverticulosis becomes more common with age and is frequently reported on CT done for other reasons.

Common causes

  • Age-related structural change in the colon wall
  • Chronic pressure-related change
  • Dietary and bowel habit factors
  • Background diverticular disease without active inflammation

When doctors worry

  • The report describes diverticulitis, abscess, perforation, or surrounding inflammation
  • There is fever or focal lower abdominal tenderness
  • Symptoms and labs suggest active infection or complication

Typical follow-up

  • Diverticulosis alone usually needs no imaging follow-up
  • Active diverticulitis is managed differently from incidental diverticulosis
  • Doctors focus on whether inflammation is present

Common misunderstandings

A radiology finding name can sound more definite than it really is. Many findings describe an imaging pattern, not a final diagnosis, and many turn out to be less urgent once doctors match the wording with your symptoms, exam, and any earlier studies.

Example report wording

Common report phrases linked to this finding

Frequently asked questions

Is diverticulosis the same as diverticulitis?

No. Diverticulosis means pouches are present; diverticulitis means there is active inflammation or infection.

Does diverticulosis always cause pain?

No. It is often found incidentally and may not be the source of symptoms.

Keep exploring related radiology pages

Clear medical disclaimer

Educational information only. Always consult your clinician for medical advice.

This page is educational only and should be used to understand report language, not to diagnose a condition or replace clinician review.

Sources

Sources and medical review process

RadDx finding pages are written for patient education using consumer-friendly radiology references, plain-language terminology resources, and cautious summary review of common imaging follow-up frameworks.

Reviewed by
RadDx Editorial Team
Last reviewed
March 10, 2026

Sources are used for patient education context and terminology support. They do not replace clinician review of your individual report.

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