Proctoscopy – Examination of the rectum and lower colon
Proctoscopy is a medical diagnostic procedure that allows the interior of the rectum and lower colon (sigmoid colon) to be examined. This procedure is used to diagnose various conditions and diseases in the rectum and lower colon.
Indications for Proctoscopy
- Rectal Bleeding
Determining the cause of rectal bleeding.
- Chronic Diarrhea or Constipation
Investigating the cause of chronic bowel problems.
- Rectal Pain
Diagnosing the cause of rectal pain or discomfort.
- Stool changes
To examine changes in your stool, such as shape, color, or consistency.
- Polyps or tumors
To detect and monitor polyps or tumors.
- Inflammatory bowel disease
To diagnose and monitor conditions such as ulcerative colitis and Crohn’s disease.
Preparing for a rectoscopy
A few days before the procedure, your doctor may recommend a special low-fiber or liquid diet to cleanse your rectum and lower colon. The evening before the procedure, you will often need to use laxatives or enemas to cleanse your rectum and colon. You may need to fast for several hours before the procedure, usually starting at midnight the day before. Tell your doctor about any medications you take, allergies, or other health problems.
Procedure of rectoscopy
The patient usually lies on their left side with their knees bent towards their chest or in a knee-elbow position. In most cases, rectoscopy is performed without anesthesia, but a local anesthetic may be used to reduce discomfort. The doctor carefully inserts a rectoscope, a flexible or rigid tube with a light and camera at the end, through the anus into the rectum. The doctor uses the rectoscope to examine the inside of the rectum and the lower part of the large intestine. If necessary, tissue samples (biopsies) can be taken for further laboratory tests. The procedure usually takes 10 to 30 minutes, depending on the complexity of the examination and the need for a biopsy.
Recovery after rectoscopy
You may experience mild discomfort or cramping after the procedure, but this usually passes after a few hours. Mild bleeding or discharge may occur, especially if a biopsy was taken. You can resume your normal diet immediately after the procedure, unless your doctor recommends otherwise. Most patients can return to their normal activities immediately after the procedure, but it is recommended to avoid strenuous activities on the day.
Contact our doctor if you notice the following symptoms after the procedure:
1. Heavy bleeding
2. Severe abdominal pain
3. Fever or chills
4. Dizziness or fainting
A rectoscopy is a useful diagnostic procedure that helps detect and monitor various conditions of the rectum and lower colon. Proper preparation and adherence to your doctor’s recommendations before and after the procedure ensure a safe and effective examination. If you have any concerns or questions, be sure to discuss them with our doctor before the procedure.

