factually
Index/Topics/Colonoscopy

Colonoscopy

A medical procedure that uses a flexible tube with a camera to examine the inside of the colon.

Fact-Checks

2 results
Jan 30, 2026

What are the specific “alarm” features that mandate colonoscopy or stool infection testing in suspected IBS?

Alarm (red‑flag) features that prompt further testing in suspected irritable bowel syndrome () most commonly include older age at symptom onset, gastrointestinal bleeding (overt or occult), unintentio...

Jan 16, 2026

What are the diagnostic tests used to locate sources of rectal bleeding in Crohn’s disease?

Rectal bleeding in Crohn’s disease is usually mild but can rarely be severe, and locating the bleeding source is often difficult because inflammation can be multifocal and strictures can impede visual...