happens when the test is performed?
- You wear a hospital gown for the procedure and lie on your
side on a table. After applying some clear jelly to his or her
gloved hand, the doctor feels the inside of your rectum with
a finger, then gently inserts one end of the sigmoidoscope inside.
The doctor will fill your intestine with air, which often causes
some pain similar to the cramping you might get when you have
gas. As the camera on the scope transmits pictures to a video
screen, your doctor watches for any suspicious lesions on your
bowel lining. If one appears, he or she might use some small
clippers on the end of the scope to take a tissue sample to check
under the microscope. When the test is finished, the doctor vacuums
the air out of your intestine and slowly removes the tube. The
test usually takes 10-30 minutes.