What is Flexible Sigmoidoscopy?

Flexible Sigmoidoscopy is a medical procedure that allows gastroenterologists to examine the lower part of the colon (sigmoid colon) and rectum. Using a thin, flexible tube with a light and camera (a sigmoidoscope), doctors can detect any signs of disease or abnormalities in this part of the digestive system. This minimally invasive procedure offers a quick and effective way to assess digestive health, especially as part of routine colon health checks for individuals over 45. 

What Problems Can Flexible Sigmoidoscopy Detect?

Flexible Sigmoidoscopy is commonly used to detect issues such as: 

  • Polyps or abnormal tissue growths that could develop into colon cancer 
  • Signs of inflammation, which may indicate conditions like ulcerative colitis or Crohn’s disease 
  • Diverticulosis, small bulges in the colon wall 
  • Hemorrhoids, rectal bleeding, or unexplained changes in bowel habits 

By identifying these problems early, Flexible Sigmoidoscopy plays an important role in preventive healthcare. 

When is Flexible Sigmoidoscopy Used?

Doctors recommend Flexible Sigmoidoscopy as part of routine colon health screenings, especially for those aged 45 and older. This procedure is also valuable for patients who experience symptoms such as chronic diarrhea, abdominal pain, or rectal bleeding. Early detection is crucial, as it enables timely intervention, minimizing the risk of more serious conditions, including colorectal cancer. 

How to Prepare for Flexible Sigmoidoscopy

Preparation for Flexible Sigmoidoscopy involves a few simple steps to ensure the colon is clear for an effective examination: 

Dietary Restrictions

You may be advised to follow a low-fiber diet a day or two before the procedure and avoid certain foods that could leave residue in the colon.

Laxatives or Enemas

Doctors often recommend a mild laxative or enema to clear the lower bowel before the procedure.

Hydration

Staying hydrated with clear liquids, like water, broth, and apple juice, is recommended on the day before your procedure.

How is Flexible Sigmoidoscopy Performed?

Flexible Sigmoidoscopy is usually performed in a doctor’s office or outpatient center and generally takes about 15-20 minutes. You will be asked to lie on your side as the doctor inserts the sigmoidoscope gently into your rectum and lower colon. This device provides a clear view of the lining of your colon, allowing the doctor to check for any abnormalities. Some patients may experience mild pressure or cramping, but Flexible Sigmoidoscopy is well-tolerated and doesn’t typically require sedation.

How Long Does it Take to Recover from Flexible Sigmoidoscopy?

Recovery from Flexible Sigmoidoscopy is quick, allowing most patients to resume normal activities immediately afterward. You may feel slight bloating or gas, but these sensations generally subside within a few hours. It’s advisable to rest briefly after the procedure and drink plenty of fluids to stay hydrated. 

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What are the Risks Associated with Flexible Sigmoidoscopy?

While Flexible Sigmoidoscopy is generally safe, it carries minimal risks. In rare cases, patients may experience bleeding, especially if polyps are removed, or very rarely, a tear in the colon wall. Discussing any concerns with your doctor before the procedure can help you feel more at ease. 

Frequently Asked Questions

Flexible Sigmoidoscopy is not typically painful, though you might feel mild discomfort during the exam. Most patients report only slight pressure or cramping.
For individuals over 45, doctors may recommend a Flexible Sigmoidoscopy every 5 years as part of a routine screening plan, depending on individual health factors.
Yes, most patients can eat normally after Flexible Sigmoidoscopy. Starting with light, easily digestible foods is often advised if you feel any residual bloating.
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