Endoscopy

Flexible Sigmoidoscopy

What is flexible sigmoidoscopy?
Flexible sigmoidoscopy looks at the colon using a flexible, lighted tube to search for abnormal growths or inflammation of the colon wall. The anal canal is also examined.

What are the benefits of flexible sigmoidoscopy?
Flexible sigmoidoscopy is an effective way to prevent and detect early colon cancer. Sigmoidoscopy also can diagnose inflammation of the colon from diseases such as ulcerative colitis or Crohn’s disease. Other colon conditions such as diverticulosis can also be diagnosed.

Who should have the procedure?
People who experience persistent abdominal pain, rectal bleeding, persistent diarrhea, or anemia (low blood counts) may need flexible sigmoidoscopy. Anyone over the age of 50 should do the exam every 3 to 5 years to check for colon diseases.

How should I prepare for the procedure?
The day before the procedure, consume a clear liquid diet in the afternoon and evening. Take two Fleet enemas at home just before the examination. Your doctor will give you additional instructions.

Is the exam uncomfortable?
There may be some discomfort and abdominal pressure. Air is placed in the colon to allow for viewing, which may cause cramping. If you choose to be sedated, there's a slightly increased risk of colon tear.

Are biopsies performed during sigmoidoscopy?
Most procedures do not require biopsies, but sometimes it's needed. The biopsy is performed by clipping a small piece of tissue inside the colon and removing it through the viewing tube. You may experience some discomfort or slight bleeding from the rectum for several days.