A breast screen uses a X-ray machine to look for cancers in the breast that can’t be seen or felt by a woman or her doctor. A breast screen is also called a screening mammogram.
How does a breast screen work?
In a breast screen, each breast is placed onto the plate of the screening machine one at a time. The machine will then press the breast onto the plate so the X-rays are as clear as possible. This may be uncomfortable but it shouldn’t be painful. If it hurts, you can ask for the breast screen to be stopped.
The female radiographer will take at least 2 images of each breast – one from the top and one from the side. These images will later be read by at least 2 doctors who are specially trained to look for breast cancers on X-rays.
How often do I need to have a breast screen?
Research shows that for most women aged 50 to 74, having a breast screen every 2 years is the most effective way to find breast cancers when they’re likely to be smaller and more easily treated.
Some women will need to have a breast screen every year. This might be because they have a strong family history, previous history of breast cancer or another reason. We’ll let you know if you need to come for a breast screen every year.
One normal breast screen result doesn’t mean you’ll never get breast cancer.
All women are encouraged to be aware of the normal look and feel of their breasts. If you’ve noticed any breast changes that concern you, speak to your doctor first. This will help make sure you receive the most appropriate and timely care.
Last updated: July 2026