Trial Information

Comparison of Colonoscopy and Sigmoidoscopy in Terms of Pain, Acceptance and Procedure Time

According to American Cancer Society guideline, screening total colonoscopy every 10 years
or sigmoidoscopy every 5 years is recommended for average risk people above 50 years old.
However,study in Taiwanese population demonstrated that 37.8% of colorectal lesions were
beyond reach of sigmoidoscope, and in cases with lesions with advanced pathology, 66.7% did
not have distal colorectal lesion. However, many people think colonoscopy is more painful
and choose sigmoidoscopy for screening. However, according to experience in a self-payed
health check-up center,unsedated total colonoscopy is not inferior or may be better than
unsedated sigmoidoscopy in terms of pain and patients' acceptance.