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Sigmoidoscopy
About Sigmoidoscopy
Sigmoidoscopy is a minimally invasive endoscopic procedure used to examine the rectum and sigmoid colon (lower part of the large intestine).
It helps detect inflammation, ulcers, polyps, bleeding sources, and early signs of colorectal disease. The procedure is performed using a flexible tube with a camera called a sigmoidoscope
Overview
Evaluates rectal bleeding and chronic diarrhea
Detects polyps and early colorectal abnormalities
Assesses inflammatory bowel disease (IBD)
Screens high-risk individuals for lower colon pathology
Allows biopsy collection during the procedure
Workflow
Step 1: Limited Bowel Preparation
Mild bowel cleansing (enema or prescribed preparation) before the procedure.
Step 2: Patient Positioning
Patient lies comfortably on the examination table.
Step 3: Scope Insertion
Flexible sigmoidoscope is gently inserted into the rectum.
Step 4: Visual Examination
High-definition camera evaluates the rectum and sigmoid colon.
Step 5: Biopsy (If Required)
Suspicious tissue samples are collected for laboratory analysis.
Step 6: Reporting
Findings are documented and explained to the patient.
Benefits & Value
For Patients
Quick and minimally invasive procedure
Early detection of lower colon diseases
Minimal discomfort
For Caregivers & Families
Early diagnosis of rectal and sigmoid colon disorders
Helps guide further treatment decisions
Reassurance through prompt evaluation
For the Community
Supports early detection of colorectal conditions
Promotes preventive digestive health screening
Reduces complications from untreated lower bowel diseases
Risks & Challenges
- • Mild abdominal cramping
- • Rare minor bleeding (especially after biopsy)
- • Very rare bowel injury
- • Limited to lower colon evaluation only
- • May require full colonoscopy if abnormalities are found
Frequently Asked Questions
Frequently Asked Questions +
Is sigmoidoscopy painful?
It may cause mild discomfort but is generally well tolerated.
How long does it take?
Approximately 10–20 minutes.
Is fasting required?
Usually limited bowel preparation is required; full fasting may not be necessary.
Can it detect cancer?
Yes, it can detect early signs of rectal and sigmoid colon cancer.
Is it safe for elderly patients?
Yes, when performed by trained specialists under proper monitoring.
