Radiology• Updated 21 October 2026
Breast Ultrasound
An ultrasound of the breast to look at lumps, often used in younger women or with a mammogram.
Results: Same day
Quick Summary
Primary Purpose
To check a breast lump or abnormal mammogram.
What It Measures
Whether a lump is a fluid-filled cyst or solid.
Preparation
No preparation.
Overview
Ultrasound is often the first test for breast lumps in women under 35.
It can guide a biopsy.
What It Measures
Lumps
Cyst or solid.
Lymph nodes
Armpit nodes.
How It's Performed
- 01
Position
Lie on your back with your arm raised.
- 02
Scan
Gel and probe over the breast.
- 03
Afterwards
Results discussed.
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