Anoscopy Test
An anoscopy is a procedure that lets your doctor look inside your lower rectum and anus to check for problems like hemorrhoids, tears, or abnormal growths.
What this test measures
An anoscopy uses a lighted scope called an anoscope to view the lining of the lower rectum and anus. A high-resolution anoscopy uses a magnifying device called a colposcope to detect small changes that the anoscope alone might miss.
What your results mean
Reference ranges vary by laboratory and by your age and sex. MedlinePlus does not publish a single normal range for this test — always read your result against the range printed on your own lab report and discuss it with your provider.
Frequently asked questions
What is an anoscopy?
An anoscopy is a procedure that uses a lighted scope called an anoscope to view the lining of your lower rectum and anus.
What conditions can an anoscopy diagnose?
It can diagnose hemorrhoids, anal fissures, anal polyps, inflammation, and cancer.
What is high-resolution anoscopy?
It uses a special magnifying device called a colposcope along with the anoscope to detect small changes in tissues.
What do abnormal results mean?
Abnormal results may show hemorrhoids, anal fissure, anal polyp, infection, or cancer. A biopsy can confirm or rule out cancer.
What happens after an anoscopy?
Depending on the results, your provider may recommend more tests and/or treatment options.
Related lab tests
Sources
- MedlinePlus: Anoscopy — NIH MedlinePlus
Last updated . Information is aggregated from official public sources and is not a substitute for professional medical care.