When Do You Need a Sigmoidoscopy?
A closer look at the lower part of your colon
A sigmoidoscopy is a diagnostic procedure that allows a gastroenterologist to examine the inside of the rectum and lower part of the colon. It uses a thin, flexible tube with a small camera to look for abnormalities such as inflammation, bleeding, polyps, or other changes.
While a sigmoidoscopy does not examine the entire colon, it can be a useful procedure when symptoms are concentrated in the lower digestive tract.
What Is a Sigmoidoscopy?
During a sigmoidoscopy, a flexible instrument called a sigmoidoscope is gently inserted through the rectum. The camera allows the doctor to examine the lining of the rectum and sigmoid colon.
If necessary, the doctor may also take a small tissue sample (biopsy) or remove certain small polyps during the procedure.
When Might You Need a Sigmoidoscopy?
Your gastroenterologist may recommend a sigmoidoscopy to investigate symptoms such as:
Rectal bleeding or blood in the stool
Changes in bowel habits, such as persistent diarrhea or constipation
Unexplained abdominal or rectal discomfort
Changes in stool appearance
Persistent urgency to have a bowel movement
Unexplained symptoms affecting the lower digestive tract
A sigmoidoscopy may also be recommended to monitor certain previously diagnosed bowel conditions or investigate abnormalities identified through other tests.
What Can a Sigmoidoscopy Detect?
The procedure can help your doctor identify conditions affecting the lower colon and rectum, including:
Colon or rectal polyps
Inflammation
Colitis
Diverticular disease
Sources of rectal bleeding
Abnormal tissue changes
If an abnormal area is found, your doctor may take a biopsy for further examination.
Is Sigmoidoscopy the Same as a Colonoscopy?
Not exactly.
A colonoscopy examines the entire colon, while a sigmoidoscopy focuses on the rectum and lower part of the colon. The appropriate procedure depends on your symptoms, medical history, previous test results, and what your gastroenterologist needs to investigate.
How Is the Procedure Performed?
Before the procedure, you will receive instructions to prepare your lower bowel. During the examination, the sigmoidoscope is carefully guided through the rectum while the doctor examines the bowel lining.
The procedure is generally relatively quick, but your doctor will explain what to expect and whether sedation is appropriate for you.
When Should You Speak to a Gastroenterologist?
If you experience persistent rectal bleeding, ongoing changes in bowel habits, unexplained abdominal discomfort, or other concerning digestive symptoms, it is important not to ignore them.
Your gastroenterologist can assess your symptoms and determine whether a sigmoidoscopy, colonoscopy, or another diagnostic test is appropriate.
Take Care of Your Digestive Health
At Abu Hammour Gastroenterology Center, our gastroenterology specialists provide personalized evaluation and care for a wide range of digestive conditions.
If you have persistent bowel symptoms or have been advised to undergo a sigmoidoscopy, speak with a gastroenterologist to understand the next steps for your health.
Conclusion
Sigmoidoscopy is a useful diagnostic procedure that allows doctors to examine the rectum and lower part of the colon. It may be recommended when symptoms such as rectal bleeding, changes in bowel habits, persistent abdominal or rectal discomfort, or other lower digestive symptoms need further evaluation.
While a sigmoidoscopy does not examine the entire colon, it can provide important information about the lower digestive tract and may allow the doctor to take biopsies or remove certain polyps when necessary.
If you experience persistent or concerning bowel symptoms, consult a gastroenterologist to determine whether a sigmoidoscopy or another diagnostic procedure is appropriate for you.
At Abu Hammour Gastroenterology Center – Dubai, our specialists are committed to providing expert gastroenterology care with personalized evaluation and treatment.
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