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Breast screening and imaging

Is a mammogram painful? What it feels like and how to make it easier

A mammogram involves pressing each breast between two plates for a few seconds, and the NHS describes it as often uncomfortable and sometimes painful. The discomfort should not last long. Worry about pain is one reason some people delay screening, so this guide explains what it feels like, what can make it easier and how to ask the mammographer to adjust or stop.

Last checked: 2026-10-10

Key facts

At a glance.

  • Often uncomfortable

    The NHS says breast screening is often uncomfortable and sometimes painful for some people, and that any discomfort should not last long.

  • Brief compression

    The NHS says each breast is squeezed between 2 pieces of plastic to keep it still, which takes a few seconds, and the whole appointment should take no longer than 30 minutes.

  • You can ask to stop

    The NHS says you can ask the mammographer to stop at any time, and Cancer Research UK says they can try to make you more comfortable.

  • Tenderness afterwards

    Cancer Research UK says you might have some tenderness in your breast for up to a few hours afterwards.

  • Nothing special to prepare

    The NHS says you do not need to do anything special to prepare, although avoiding deodorant, antiperspirant and talcum powder on the day is advised.

The short answer

For most people a mammogram is uncomfortable rather than agonising. Cancer Research UK says you will feel a little pressure and it is likely to be uncomfortable, and that some women find it painful, but it is over quickly. The NHS puts it similarly: often uncomfortable, sometimes painful for some people, and any discomfort should not last long.

How it feels varies from person to person. Someone who found a past mammogram unpleasant may find the next one the same, but it is worth saying so, because staff can adapt.

What actually happens

The NHS describes the appointment as follows. A mammographer checks your details and asks whether you have had any breast problems, then you undress above the waist in private. The mammographer places one breast on the X-ray machine and needs to touch the breast to position it. The breast is squeezed between 2 pieces of plastic for a few seconds while you stay still, then the machine is moved and a second X-ray is taken. The other breast is X-rayed the same way.

Cancer Research UK says you usually have 2 X-rays from each breast, one from the top and one from the side. The pressure is what holds the tissue still and spreads it out so the picture is clear, which is why it is firm. The actual X-ray exposure is very brief.

Things that can make it more comfortable

The NHS lists practical points that may help, and each is simple to act on.

  • Wear a top that is easy to remove rather than a dress or jumpsuit.

  • Tell the staff if you have found screening uncomfortable in the past.

  • Tell them if you are nervous or embarrassed. The NHS says they are trained to help you feel more comfortable and provide support.

  • Tell them if you have difficulty walking or standing, so they can help make you comfortable.

  • Ask them to avoid words that make you uncomfortable or nervous, and tell them your pronouns if you wish.

  • Remove necklaces and nipple piercings, and a binder if you wear one.

  • Do not use deodorant, antiperspirant or talcum powder on the day, as it may affect the mammogram.

When it may hurt more, and what to say

The NHS and Cancer Research UK do not give a list of causes of extra discomfort, so it is best not to guess. What the sources do say is practical: talk to the mammographer if you are finding it too painful, because the mammographer can stop at any time and try to make you more comfortable.

Telling staff before the machine is used lets them describe each step, position you differently if needed, and pause. If you have breast implants, Cancer Research UK says to tell the mammographer, who may need to take extra X-rays and is very experienced in doing mammograms for women with implants.

Pain that persists after you get home is not what the sources describe as usual. Tenderness for up to a few hours is expected, so if you have pain that lasts longer, a lump or any change in the breast, speak to your GP.

Why the discomfort is usually worth it

The NHS says breast screening uses X-rays called mammograms to look for cancers that are too small to see or feel. Cancer Research UK says the screening programme invites women aged between 50 and 70 for screening every 3 years, and that you need to be registered with a GP to receive invitations.

Cancer Research UK also notes that mammograms involve a very small amount of radiation and that screening does not always find a cancer that is there, so it remains important to see your GP if you notice breast changes between screenings.

After the appointment

You can get dressed straight away. The NHS says you will usually get your results within 2 weeks. Cancer Research UK says sometimes the mammogram is not clear enough and needs repeating, and that if something abnormal shows you have more tests such as an ultrasound or biopsy, often at a one-stop breast clinic. Being asked to return does not by itself mean cancer has been found.

Frequently asked

Questions people ask.

Quick, plain-English answers to the questions we hear most.

  • Do mammograms hurt?

    The NHS says breast screening is often uncomfortable and sometimes painful for some people, and that discomfort should not last long. Cancer Research UK says it is over quickly.

  • How long does the squeeze last?

    The NHS says the breast is squeezed between 2 pieces of plastic for a few seconds per X-ray, and the whole appointment should take no longer than 30 minutes.

  • Can I ask them to stop?

    Yes. The NHS says you can ask to stop at any time, and Cancer Research UK says the mammographer can try to make you more comfortable.

  • Can I take a painkiller beforehand?

    The sources cited here do not give advice on this. Ask your GP or pharmacist if you want to take one, rather than relying on general tips.

  • Will my breasts be sore afterwards?

    Cancer Research UK says you might have some tenderness in your breast for up to a few hours.

  • Do I need to prepare?

    The NHS says you do not need to do anything special. Avoid deodorant, antiperspirant and talcum powder on the day, and wear an easy-to-remove top.

  • What if I have breast implants?

    Cancer Research UK says to tell the mammographer, who may take extra X-rays and is very experienced with implants.

  • Is a mammogram safe?

    Cancer Research UK describes a mammogram as a very safe test, with a very small amount of radiation, and asks you to tell the mammographer if you may be pregnant.

  • What if I am called back?

    Cancer Research UK says the image is sometimes not clear enough and needs repeating, and further tests are done if an area looks abnormal. Being recalled does not by itself mean cancer.

Where this comes from

Sources and checking.

This guide is for information, not medical advice.

Your GP or consultant knows your history and can tell you which parts apply to you. If your symptoms are severe, rapidly worsening, or come with red-flag features, seek urgent medical care. Figures and availability change, so treat them as a guide and confirm with the provider.

Published 2026-10-10, next review 2027-10-10.