Effect of Single Colonoscopy on Colorectal Adenomas Detection

Clinical Study That Effect of Individualized Intervention of Single Colonoscopy on Colorectal Adenomas Detection

Individualized colonoscopy withdrawal time is determined based on the different grade of physician experience and quality of bowel preparation.

Inclusion Criteria:

1. Greater than the age of 40;
2. Pathology and endoscopic data recorded available and detailed;
3. Whole bowel staining endoscopy is not done.

Exclusion Criteria:

1. Not reach the ileocecal junction;
2. Colorectal cancer;
3. Familial adenomatous polyposis;
4. Inflammatory bowel disease;
5. Part of the bowel resection.