Video of your vocal cords (videostroboscopy)

This is a test to look at your voice box (larynx) and vocal cords while you speak. Your doctor uses a flexible endoscope. This is a thin tube that has a camera and light and is connected to a video monitor and recorder. It helps your doctor to see the movement of your vocal cords while you speak.

This test is also called a videolaryngoscopy with stroboscopy.

Why do you have a videostroboscopy?

You have a video of your vocal cords to help your doctor see how they move when you speak. It also gives your doctor a chance to look for abnormal areas on your vocal cords and in your voice box.

How to prepare for a videostroboscopy

There is no special preparation for this test.

How do you have a videostroboscopy?

You usually have this test in the outpatient clinic. You sit upright in a chair, your doctor will make sure you are comfortable before they start. 

You have an anaesthetic spray to numb your throat first. It takes a few minutes for the area to go numb. They then pass the endoscope either up your nose or into your mouth and then down into your throat. It has a camera and fibre optic strobe light on the end, which your doctor uses to make a video of your vocal cords.

Your doctor will ask you to talk or make certain noises and they record this on the video. This allows them to see your vocal cords moving in slow motion and gives a clear picture of the area.

The test can take up to 20 minutes but often takes less time. 

What happens after a videostroboscopy?

You can usually go home after the test. 

Your throat and nose will stay numb for a while after the test. This might interfere with swallowing food and liquid normally. It's important not to eat or drink for two hours after the test.

Your nurse will let you know about any specific instructions you need to follow after the test. 

Getting your results

The doctor will record the test and then replay the recording slowly. They will explain to you the findings of the test.