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Read about what a nasendoscopy is, how you have it and what happens afterwards. 

What is a nasendoscopy?

A nasendoscopy is a test to look at the inside of the nose, the throat (pharynx) and the voicebox (larynx).

Your doctor passes a thin flexible tube called an nasendoscope through your nose, down to your voice box. The tube has a camera and a light at the end and allows the doctor to check for any abnormal looking areas.

Before your test

There are no special preparations for a nasendoscopy.

You can eat and drink and take your medicines as normal. 

What happens

This normally takes place in an outpatient clinic. You will be awake and able to speak to the doctor.

Your doctor passes the nasendoscope up your nose and down your throat. This can be uncomfortable but does not usually hurt. Your doctor might ask if you would like an anaesthetic sprayed on the back of your throat beforehand to numb it.

After your test

You can usually go home straight after your test. 

If you had the anaesthetic spray, you can’t eat or drink until the anaesthetic wears off and your throat feels normal again. This may take about an hour.

Nasendoscopy is a very safe procedure, but your nurse tells you who to contact if you have any problems after your test.

You can contact the Cancer Research UK nurses on freephone 0808 800 4040. The lines are open from 9 to 5, from Monday to Friday.
Last reviewed: 
28 Feb 2018
  • Nasopharyngeal carcinoma: United Kingdom National Multidisciplinary Guidelines
    R Simo and others
    Journal of Laryngology and Otology, 2016. Volume 130, Supplement 2, Pages 97-103

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