ENT• Updated 21 October 2026
Tympanometry
A quick test that checks how well the eardrum moves, used to find fluid behind the eardrum.
Results: Immediately
Quick Summary
Primary Purpose
To check for middle ear fluid, glue ear and eardrum problems.
What It Measures
Eardrum movement and middle ear pressure.
Preparation
No preparation.
Overview
A small probe in the ear changes air pressure gently.
It's often done in children with hearing concerns.
What It Measures
Eardrum movement
Flat in fluid or perforation.
How It's Performed
- 01
Probe
Placed in the ear.
- 02
Measure
A few seconds of pressure changes.
- 03
Done
Quick and painless.
Sources and further reading
Last updated 21 October 2026. For more detail, see these trusted health organisations.
- Hearing Tests for Children(opens in a new tab) · MedlinePlus, US National Library of Medicine