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

Your doctor passes a thin flexible tube called a nasendoscope into your nose and down the back of your throat 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 during the test

A nasoendoscopy usually takes place in an outpatient clinic. It lasts only a few minutes. You will be awake and able to speak to the doctor. They might ask you to say some words, noises or sentences out loud or puff out your cheeks.

Your doctor passes the nasendoscope up your nose and down your throat. This can be uncomfortable but does not usually hurt. Your eyes might water, and you might feel like coughing. Occasionally people have a slight nose bleed after the procedure.

Your doctor might ask if you would like a local anaesthetic sprayed in your nose or on the back of your throat 10 minutes 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 will tell you who to contact if you have any problems after your test. Your doctors will make sure the benefits of having a nasendoscopy outweigh these possible risks.

Getting your results

You should get your results within 1 or 2 weeks at a follow up appointment.

Waiting for test results can be a worrying time. You can contact your specialist nurse if you’re finding it hard to cope. It can also help to talk to a close friend or relative about how you feel.

For support and information, you can call the Cancer Research UK nurses on freephone 0808 800 4040. The lines are open from 9am to 5pm, Monday to Friday.

Contact the doctor that arranged the test if you haven't heard anything after a couple of weeks.