What Is High Resolution Anoscopy?
High Resolution Anoscopy (HRA) is a specialized procedure used to closely examine the anal canal and lower rectum for abnormal or precancerous cells. Using a high-magnification device called an anoscope along with a colposcope, your provider can identify subtle changes in the tissue that may not be visible during a standard exam.
This procedure is commonly used to detect anal dysplasia (precancerous changes) and screen for anal cancer, particularly in patients at higher risk.
What Preparation Is Required?
Preparation for HRA is minimal. You may be asked to use a small enema prior to your appointment to help clear the lower rectum for better visualization.
Your provider will give you specific instructions before your procedure. In most cases, no dietary restrictions are required.
Can I Take My Current Medications?
Most medications can be continued as usual. However, please inform your provider if you are taking blood thinners, aspirin, or anti-inflammatory medications, as these may increase the risk of bleeding if a biopsy is performed.
What Happens During High Resolution Anoscopy?
During the procedure, you will lie in a comfortable position while a small anoscope is gently inserted into the anal canal. A special solution may be applied to highlight abnormal areas.
The provider uses magnification to carefully examine the tissue. If any suspicious areas are identified, small biopsies may be taken for further evaluation.
The procedure typically takes 15–30 minutes and is generally well tolerated. Some patients may experience mild discomfort or pressure.
What If the Exam Shows Something Abnormal?
If abnormal tissue is identified, a biopsy may be performed. These samples are sent to a laboratory for analysis to determine whether precancerous or cancerous cells are present.
Your provider will discuss next steps based on your results, which may include monitoring or treatment.
What Happens After the Procedure?
Most patients can return to normal activities the same day. You may experience mild soreness or light bleeding if a biopsy was taken.
Results from biopsies are typically available within 1–2 weeks, and your provider will review them with you.
What Are the Possible Complications?
HRA is a very safe procedure. While uncommon, possible complications include mild bleeding, discomfort, or infection at the biopsy site.
Contact your provider if you experience significant pain, fever, or heavy bleeding after the procedure.
For more information about Liberty Endoscopy Center please call 646.215.2244 or book an online appointment for a consultation at any time.
