Nasoendoscopy explained
A nasoendoscopy is a common ENT investigation used to examine the nasal passages, throat, and voice box. It is often recommended to assess persistent throat, voice, or nasal symptoms that cannot be fully evaluated by examination alone.
This page explains why a nasoendoscopy may be advised, what the procedure involves, and what usually happens next, written from a GP perspective.
These articles are intended as educational sources, not diagnostic nor taking place of a proper medical assessment. If you need help, please book an appointment with one of our GP’s.
Why might a nasoendoscopy be recommended?
A GP or ENT specialist may recommend a nasoendoscopy to help investigate:
- persistent throat discomfort or a sensation of a lump in the throat
- ongoing hoarseness or voice changes
- chronic nasal blockage or congestion
- post-nasal drip or persistent throat clearing
- difficulty swallowing
- unexplained cough
- suspected inflammation, infection, or structural changes
In many cases, a nasoendoscopy is performed to identify benign causes and provide reassurance.
What happens during a nasoendoscopy?
A nasoendoscopy involves passing a thin, flexible camera through the nose to view the upper airway.
- The procedure is usually performed in an outpatient clinic
- A local anaesthetic spray may be used in the nose
- The test itself typically lasts a few minutes
- You remain awake throughout
The procedure is usually well tolerated, though brief discomfort or watering of the eyes can occur.
How do I prepare for a nasoendoscopy?
Preparation is minimal.
In most cases:
- no fasting is required
- you can take your usual medications
- the test can be performed during a routine clinic visit
Your clinician will advise if any specific preparation is needed.
Is a nasoendoscopy safe?
Nasoendoscopy is a widely used and very safe investigation.
Possible side effects include:
- mild nasal discomfort
- sneezing or watering eyes
- a small amount of nosebleed, which usually settles quickly
Serious complications are very rare.
What happens after the test?
After a nasoendoscopy:
- findings are often explained immediately
- further tests or treatment depend on what is seen
- many patients are reassured and require no further investigation
When to seek GP review
You may wish to speak to a GP if:
- you are unsure why a nasoendoscopy has been recommended
- you feel anxious about the procedure
- symptoms persist despite reassurance
- you need help understanding results or next steps
- you want to explore private or faster access options
How AccessGP can help
AccessGP offers GP consultations to support patients before and after nasoendoscopy, including:
- assessing symptoms and referral needs
- explaining why the test has been requested
- advising on preparation and follow-up
- arranging private ENT referrals where appropriate
- reviewing results and treatment plans
Related articles
Further Reading and Hub Links
Visit our Medical Investigations hub or browse more health topics in the AccessGP Knowledge Base.
If you have concerns about an upcoming nasoendoscopy or wish to discuss symptoms, a GP can help advise on next steps.
Last reviewed by Dr Zamiel Hussain, GMC registered GP
Updated: 4 January 2026