Anoscopy
Show Alternative Names
Anal fissures - anoscopy
Anal polyps - anoscopy
Foreign object in the anus - anoscopy
Hemorrhoids - anoscopy
Anal warts - anoscopy
Anoscopy is a method to look at the:
- Anus
- 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.
Digital rectal exam
A digital rectal exam is an exam of the lower rectum. Your health care provider uses a gloved, lubricated finger to check for any abnormal findings....
Image
Read Article Now
Book Mark Article
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.
Biopsy
A rectal biopsy is a procedure to remove a small piece of tissue from the rectum for examination.
Image
Read Article Now
Book Mark Article
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.
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.
Why the Test is Performed
This test may be used to determine whether you have:
- Anal fissures (small split or tear in the lining of the anus)
Anal fissures
An anal fissure is a small split or tear in the thin moist tissue (mucosa) lining the lower rectum (anus).
ImageRead Article Now Book Mark Article - Anal polyps (growth on the lining of the anus)
Anal polyps
A colorectal polyp is a growth on the lining of the colon or rectum.
ImageRead Article Now Book Mark Article - Foreign object in the anus
- Hemorrhoids (swollen veins in the anus)
Hemorrhoids
Hemorrhoids are swollen veins in the anus or lower part of the rectum.
ImageRead Article Now Book Mark Article - Infection
- Inflammation
- Tumors
Normal Results
The anal canal appears normal in size, color, and tone. There is no sign of:
- Bleeding
- Polyps
- Hemorrhoids
- Other abnormal tissue
What Abnormal Results Mean
Abnormal results may include:
- Abscess (collection of pus in the anus)
Abscess
An abscess is a collection of pus in any part of the body. In most cases, the area around an abscess is swollen and inflamed.
ImageRead Article Now Book Mark Article - Fissures
- Foreign object in the anus
- Hemorrhoids
- Infection
- Inflammation
- Polyps (non-cancerous or cancerous)
- Tumors
Risks
There are few risks. If a biopsy is needed, there is a slight risk for bleeding and mild pain.
Review Date:
8/22/2022
Reviewed By
Debra G. Wechter, MD, FACS, General Surgery Practice Specializing in Breast Cancer, Virginia Mason Medical Center, Seattle, WA. Also reviewed by David C. Dugdale, MD, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.
References
Beard JM, Osborn J. Common office procedures. In: Rakel RE, Rakel DP, eds. Textbook of Family Medicine. 9th ed. Philadelphia, PA: Elsevier; 2016:chap 28.
Downs JM, Kudlow B. Anal diseases. In: Feldman M, Friedman LS, Brandt LJ, eds. Sleisenger and Fordtran's Gastrointestinal and Liver Disease. 11th ed. Philadelphia, PA: Elsevier; 2021:chap 129.
Reynolds PL, Wilkins T. Anoscopy. In: Fowler GC, ed. Pfenninger and Fowler's Procedures for Primary Care. 4th ed. Philadelphia, PA: Elsevier; 2020:chap 83.
Disclaimer
The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed medical professional should be consulted for diagnosis and treatment of any and all medical conditions. Links to other sites are provided for information only -- they do not constitute endorsements of those other sites.
No warranty of any kind, either expressed or implied, is made as to the accuracy, reliability, timeliness, or correctness of any translations made by a third-party service of the information provided herein into any other language. © 1997-
A.D.A.M., a business unit of Ebix, Inc. Any duplication or distribution of the information contained herein is strictly prohibited.
All rights reserved.