Camera test
Nasendoscopy
A nasendoscopy uses a very thin flexible camera passed through the nose to examine the nasal passages, throat and voice box.
Quick answer
Nasendoscopy: what it is and what the results mean
A nasendoscopy (flexible nasal endoscopy) is a quick outpatient examination using a slim endoscope passed through a nostril to view the inside of the nose, the back of the throat (nasopharynx and pharynx) and the larynx.
- Why it is done: It is used to investigate a blocked or runny nose, nosebleeds, sinus problems, a persistent sore throat, swallowing difficulty, a hoarse voice, snoring, or a lump in the neck, and to look for polyps, inflammation or growths.
- Understanding results: The doctor can usually explain the findings immediately — such as a normal examination, inflammation, polyps, enlarged tissue or a suspicious area — and advise on further scans, biopsy or treatment.
What it is
A nasendoscopy (flexible nasal endoscopy) is a quick outpatient examination using a slim endoscope passed through a nostril to view the inside of the nose, the back of the throat (nasopharynx and pharynx) and the larynx.
Why it is done
It is used to investigate a blocked or runny nose, nosebleeds, sinus problems, a persistent sore throat, swallowing difficulty, a hoarse voice, snoring, or a lump in the neck, and to look for polyps, inflammation or growths.
What to expect
You sit upright and may have a numbing and decongestant spray in the nose. The thin camera is gently passed along a nostril while you breathe normally and are asked to swallow or make sounds. It takes just a few minutes.
Understanding the results
The doctor can usually explain the findings immediately — such as a normal examination, inflammation, polyps, enlarged tissue or a suspicious area — and advise on further scans, biopsy or treatment.
Good to know
Risks and limitations
It is very safe. You may have brief discomfort, watering eyes, sneezing or a small nosebleed. It examines the nose and throat but does not assess the sinuses’ interior, which may need a CT scan.
Education and reference only. This explains the test in general terms and is not medical advice. Always follow the specific instructions from the team arranging your test, and discuss your results with your clinician.
Answers
Nasendoscopy: frequently asked questions
Will a nasendoscopy make my nose bleed?
A small amount of bleeding is possible but uncommon, especially as a decongestant spray is often used to shrink the lining and make more room for the thin camera.
Can I drive home afterwards?
Yes. A nasendoscopy uses only local spray, not sedation, so you can usually drive and return to normal activities straight away.
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Sources
Where this is drawn from
- NHS — Tests and treatments
- NICE — diagnostic guidance
- Relevant royal college / professional body
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