Anoscopy is a method to look at the:
- Anal canal
- Lower rectum
How the Test is Performed
The procedure is usually done in a doctor's office.
A digital rectal exam is done first. Then, a lubricated instrument called an anoscope is placed a few inches or centimeters into the rectum. You will feel some discomfort when this is done.
The anoscope has a light on the end, so your health care provider can see the entire area. A sample for biopsy can be taken, if needed.
How the Test will Feel
There will be some discomfort during the procedure. You may feel the need to have a bowel movement. You may feel a pinch when a biopsy is taken.
You can usually return to normal activities after the procedure.
How to Prepare for the Test
Often, there is no preparation needed. Or, you may receive a laxative, enema, or other preparation to empty your bowel. You should empty your bladder before the procedure.
The anal canal appears normal in size, color, and tone. There is no sign of:
- Other abnormal tissue
There are few risks. If a biopsy is needed, there is a slight risk of bleeding and mild pain.
What Abnormal Results Mean
Abnormal results may include:
Why the Test is Performed
Nyberg SM. Anoscopy. In: Dehn RW, Asprey DP, eds. Essential Clinical Procedures. 3rd ed. Philadelphia, PA: Elsevier Saunders; 2013:chap 30.