Sigmoidoscopy (Anoscopy, Proctoscopy)
How It Is Done continued...
Once you are in position:
- Your doctor will gently insert a gloved finger
into your anus. For men, your doctor will
also check the condition of the
prostate gland .
- The lubricated scope is
then inserted . The scope is moved slowly forward into the rectum and lower
colon. During a sigmoidoscopy, puffs of air sometimes are blown through the
scope to open the colon so that your doctor can see more
- Suction may be used to remove watery stool, enema liquid,
mucus, or blood through the scope.
- Once your doctor has moved the
scope forward as far as possible, it is slowly withdrawn while tissue is
carefully inspected .
- Your doctor may also insert tiny instruments
(forceps, loops, swabs) through the scope to collect tissue samples (biopsy) or
to remove growths. Tissue samples may be sent to a laboratory for
The entire examination usually takes 5 to 15 minutes,
slightly longer if tissue samples are taken or if polyps are removed.
After the test
After the scope is removed, your anal area will be cleaned
with tissues. If you are having cramps, passing gas may help relieve
If you received a
sedative during the test, do not drive, operate
machinery, or sign legal documents for 24 hours after the test. Arrange to have
someone drive you home after the test.
After the test you may
resume your regular diet, unless your doctor gives you other directions. Be
sure to drink plenty of liquids to replace those you have lost during the
preparation for the sigmoidoscopy.