High resolution anoscopy
Medical tests
Colorectal Surgery
What is a high resolution anoscopy?
High resolution anoscopy, or HRA, is an outpatient diagnostic procedure used to examine the anal canal under magnification. It involves the use of an anoscope which is a small plastic tube that is inserted into the anus to inspect the anal canal. A colposcope which is a magnifying instrument is then used to inspect the anal canal and the skin around