Radiology• Updated 21 October 2026
Thyroid Ultrasound
An ultrasound of the neck to look at the thyroid gland and any lumps.
Results: Same day
Quick Summary
Primary Purpose
To check thyroid swelling and nodules, and guide needle tests.
What It Measures
Size of the thyroid and features of nodules.
Preparation
No preparation.
Overview
Ultrasound features help decide whether a nodule needs an FNAC.
Most thyroid nodules are harmless.
What It Measures
Thyroid size
Goitre.
Nodules
Size and features.
How It's Performed
- 01
Position
Lie with your neck slightly stretched.
- 02
Scan
Gel and probe on the neck.
- 03
Afterwards
Go home.
Sources and further reading
Last updated 21 October 2026. For more detail, see these trusted health organisations.
- Ultrasound(opens in a new tab) · MedlinePlus, US National Library of Medicine
- Ultrasound scan(opens in a new tab) · NHS