Anoscopy
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What is the
test?
A tube called an anoscope is used to look at
the inside of your anus and rectum. Doctors use
anoscopy to diagnose hemorrhoids, anal fissures
(tears in the lining of the anus), and some cancers.
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How
do I prepare for the test?
Before the test, you might want to empty your
bladder or have a bowel movement to make yourself
more comfortable.
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What
happens when the test is performed?
This test is usually done in a doctor's office.
You need to remove your underwear. Depending
on what the doctor prefers, you either lie on
your side on top of an examining table, with
your knees bent up to your chest, or bend forward
over the table. The anoscope is 3 to 4 inches
long and the width of an average-to-large bowel
movement. The doctor coats the anoscope with
a lubricant and then gently pushes it into your
anus and rectum. The doctor may ask you to "bear
down" or push as if you were going to have a
bowel movement, and then relax. This helps the
doctor insert the anoscope more easily and identify
any bulges along the lining of the rectum.
By shining a light into this tube, your doctor
has a clear view of the lining of your lower
rectum and anus. When the test is finished, the
anoscope then is pulled out slowly.
You will feel pressure during the examination,
and the anoscope will make you feel as if you
are about to have a bowel movement. Do not be
alarmed by this sensation; it is normal. Most
patients do not feel pain from anoscopy.
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What
risks are there from the test?
There are no significant risks from anoscopy.
Sometimes, especially if you have hemorrhoids,
you may have a small amount of bleeding after
the anoscope is pulled out.
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Must
I do anything special after the test is over?
You can return to your normal activities immediately.
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How
long is it before the result of the test is
known?
Your doctor can tell you about your anoscopy
exam right away.
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