The clinic diagnostic value of the rigid sigmoidoscopy

Y. T. You*, J. Y. Wang, C. R. Changchien, J. S. Chen, R. P. Tang, H. A. Fan, S. E. Lin, C. R. Lai

*Corresponding author for this work

Research output: Contribution to journalJournal Article peer-review

2 Scopus citations


Rigid sigmoidoscopy is beneficial as it detects rectal or distal sigmoidal lesions very efficiently and precisely. But it also has some complications, e. g. rectal injury, rectal perforation or transient bacteremia. In this prospective study, 800 cases were collected and divided into two groups. In group I, 400 O.P.D. symptomatic cases were chosen randomly and in group II 400 cases registered for routine physical examination were picked up. The positive detection rate was 7% in group I versus 2% in group II. The lesions detected in group I are 15 cases of cancer, 7 cases of polyp, 4 cases of irradiation proctitis, 2 cases of ulcerative colitis and 1 case of pseudomembranous colitis. Only 8 polyps are found in group II. The routine sigmoidoscopy is mandatory for symptomatic patients but it is not cost-effective for routine check-ups. The stool occult blood is the best screening test for detecting colorectal lesions. For routine physical examination, stool occult blood test is safe and easy to perform. If the stool occult blood test is positive, then further examinations will be necessary.

Original languageEnglish
Pages (from-to)22-27
Number of pages6
JournalChang Gung Medical Journal
Issue number1
StatePublished - 03 1991
Externally publishedYes


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