# Laryngoscopy and Vocal Cord Check

URL: https://thethyroidologist.com/tests/laryngoscopy-vocal-cord-check/
Section: Tests
Last medically reviewed: 2025-11-15

> Laryngoscopy examines the vocal cords before or after thyroid surgery, or when a voice change needs investigation.

Laryngoscopy is an examination of the voice box and vocal cords. In thyroid care it is used when a voice change needs investigation, and sometimes before or after thyroid surgery to check the nerves that control the vocal cords.
The examination is quick and can be performed with a flexible camera through the nose or a rigid camera via the mouth.

## Why it is done

The recurrent laryngeal nerves run close to the thyroid and control the vocal cords. A large goitre, a nodule or thyroid cancer can affect these nerves, and thyroid surgery can temporarily or permanently disturb them.
Laryngoscopy is also used when a person has persistent hoarseness, to look for other causes such as polyps, inflammation or vocal cord paralysis.

## How it is performed

A flexible laryngoscope is passed through the nose after local anaesthetic, or a rigid scope is used through the mouth. The clinician views the vocal cords and asks you to speak or breathe to assess movement.
The examination usually takes a few minutes and does not require sedation.

## Before and after thyroid surgery

Some surgeons check the vocal cords before surgery as a baseline, especially if there is a voice change or a large goitre. After surgery, laryngoscopy may be used if the voice is persistently hoarse or weak.
Finding a nerve problem helps guide monitoring and speech therapy.

## Results

The clinician can usually explain the findings immediately. If a problem is found, further assessment or speech therapy may be arranged.

## Frequently asked questions

### Is laryngoscopy uncomfortable?

It can be mildly uncomfortable, but it is quick and usually well tolerated. Local anaesthetic is used for the flexible approach.

### Do I need it before thyroid surgery?

Not always, but it is often done when there is a voice change, a large goitre or concern about nerve function.

### Can it show nerve damage?

Yes — it shows how the vocal cords move and can identify paralysis or weakness.

### Will I be able to talk afterwards?

Yes — the anaesthetic wears off quickly. You may have a slight numb feeling in the throat for a short time.

## Disclaimer

The content on this website is for general educational purposes only and does not constitute medical advice, diagnosis, or treatment. Always consult a qualified healthcare professional about your specific condition.

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