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
Is a flexible sigmoidoscopy painful or uncomfortable for patients? +
A flexible sigmoidoscopy is generally not painful, though patients may feel mild bloating, gas pressure, or brief abdominal cramping during scope insertion. At Nano Hospitals Bangalore, experienced gastroenterologists use lubricated flexible endoscopes and gentle air insufflation, offering mild sedation when necessary to ensure maximum patient comfort.
How long does a flexible sigmoidoscopy procedure take at Nano Hospitals? +
The actual flexible sigmoidoscopy procedure at Nano Hospitals Bangalore takes approximately 10 to 20 minutes to complete. Including pre-procedure check-in, vital sign preparation, and a short 15-to-30-minute post-procedure recovery observation, patients typically complete their entire diagnostic visit within one hour.
Is fasting or full bowel preparation required before a sigmoidoscopy? +
Full colon cleansing is not required for a flexible sigmoidoscopy, unlike a full colonoscopy. Gastroenterologists at Nano Hospitals Bangalore typically prescribe one or two self-administered enemas a few hours prior to clear the lower bowel, alongside a light or liquid diet and short fasting period beforehand.
Can a flexible sigmoidoscopy detect colon cancer, polyps, and inflammatory bowel disease? +
Yes, flexible sigmoidoscopy effectively detects early signs of rectal and sigmoid colon cancer, precancerous adenomatous polyps, hemorrhoids, and inflammatory bowel diseases like ulcerative colitis. At Nano Hospitals Bangalore, gastroenterologists perform real-time visual inspection and tissue biopsies to diagnose lower gastrointestinal bleeding and lesions early.
How can patients book a flexible sigmoidoscopy at Nano Hospitals, Bangalore? +
Yes. Flexible sigmoidoscopy consultations and procedures at Nano Hospitals Bangalore are available by appointment. You can schedule your appointment through nanohospitals.in/health-facilities/sigmoidoscopy, by calling the hospital, or by visiting the hospital reception desk.
