What Is an Anoscope?

Anorectoscope is an endoscope that examines the rectum. It is also called anoroscope or rectoscope. The length of the anoscope is generally 7cm, and the inner diameter varies. Anoscopy is one of the routine examination methods for anorectal diseases. It is suitable for lesions near the anal canal, the end of the rectum and the dentate line. This method is not only simple and easy to implement, but also has great clinical value.

Basic Information

Chinese name

Anuscopy

Clinical significance

Assess the degree of hemorrhoids and diagnose rectal cancer

Preparation for anoscopy

1. Ask the patient to empty the large and small urine, take the lateral position, and fully expose the anus.
2. Explain to the patient the purpose of the examination and the possible discomfort.
3. Insert the lens plug into the lens body and apply paraffin oil to the lens body.

Anoscopy indications

1. Those with symptoms of anorectal disease, such as blood in the stool, bloating, prolapse, pain, etc.
2. Biopsy of lower rectal lesions.
3. Unexplained diarrhea and blood in the stool.

Anoscopy contraindications

1. Anal canal and rectal stenosis.
2. Anal canal, rectal acute infection or local painful lesions, such as anorectal abscess, anal fissure and so on.
3. Suspected rectal perforation or systemic organic disease, severe mental illness intolerance.
4. Women's menstrual period.

Clinical significance of anuscopy

1. Anoscopy can detect and evaluate the degree of hemorrhoids, with or without anal fistula, polyps, and anal papillary lesions.
2. Anoscopy can also be used to diagnose rectal cancer.

Anoscopy precautions

1. Apply paraffin oil to the anoscope before the examination.
2. When inserting an anoscope, the patient should first extend into the ventral direction of the patient, and after passing through the anal canal, then advance to the coccyx. Do not insert blindly, increase patient pain and unnecessary injury.
3. Anuscopy needs to be turned in all directions during observation, and all observations must be made without omission.
4. Do not remove the mirror plug when entering the mirror and pushing the anus mirror forward. The inspection action should be gentle.