What is an anoscopy?
An anoscopy is performed if your doctor finds any abnormalities during a digital rectum exam (DRE). As an endoscopic test, an anoscopy allows your doctor to see the abnormalities using a thin, lighted, flexible tube called an anoscope. The anoscope is lubricated before being placed a few inches into the rectum. You may feel some discomfort during the procedure. If needed, your doctor would take a sample for a biopsy.
Anoscopy for anal cancer
An anoscopy gives your doctor the ability to view the anus, anal canal and lower rectum, making it an important tool for diagnosing anal cancer. A sample of any lumps, polyps or other abnormalities found during a DRE would be taken for biopsy during an anoscopy.