MGM Sigmoidoscopy

Sigmoidoscopy

Sigmoidoscopy is a procedure used to see inside the sigmoid colon and rectum. The sigmoid colon is the area of the large intestine nearest to the rectum. A sigmoidoscopy procedure may be suggested if someone is experiencing abdominal pain, diarrhea, constipation, blood, mucus or pus in the stool, and unexplained weight loss.

How is it performed?

An hour before the procedure, the patient is given an enema to empty their bowels or they might be recommended a laxative the night before.
The patient lies on their left side with their knees drawn up to their chest.
The doctor gently places a gloved and lubricated finger into the patient’s rectum to check for blockage and gently enlarges (dilates) the anus. This is called a digital rectal exam.
Next, a cleaned sigmoidoscope is placed through the anus. The scope is a flexible tube with a camera at its end.
The scope is gently moved into the colon. Air is inserted into the colon to enlarge the area and help the doctor view the area better.
Often, the images are seen in high definition on a video monitor.
The doctor may take tissue samples with a tiny biopsy tool or a thin metal snare inserted through the scope. Heat may be used to remove polyps.
Sigmoidoscopy using a rigid scope may be done to treat problems of the anus or rectum.