Breast Cancer: Prevention

Approximately half of all breast cancers globally develop in people who have no identifiable breast cancer risk factor other than gender (born female) and age (over 40)

Behavioural choices and related interventions that reduce the risk of breast cancer include:

  • prolonged breastfeeding;
  • regular physical activity;
  • weight control;
  • avoidance of harmful use of alcohol;
  • avoidance of exposure to tobacco smoke;
  • avoidance of prolonged use of hormones; and
  • avoidance of excessive radiation exposure.

If all of the potentially modifiable risk factors could be controlled, this would reduce the risk of developing breast cancer by at most 30%.

The risk of breast cancer is higher in white women than any other ethnic group. This is at least partly due to lifestyle factors.

There is no sure way to prevent breast cancer but there are small steps all women can take to help reduce their risk.

Weight Control

Being overweight or obese after menopause increases the risk of breast cancer. The female hormone oestrogen can help breast cancer grow. After menopause, most of the body’s oestrogen comes from fat tissue. Having more fat tissue can increase your risk of getting breast cancer by raising oestrogen levels. In addition, women who are overweight tend to have higher levels of insulin, another hormone. Higher insulin levels have also been linked to some cancers, including breast cancer.

To reduce your risk, keep a healthy weight for your height. Try to reduce your intake of sugary and processed foods and eat more fruit and vegetables. If you are overweight, set yourself a realistic target for weight loss such as ½ lb / .2kg a week.

Get active – Regular Physical Activity

The relationship between exercise and breast cancer has been extensively studied by researchers worldwide. Most studies indicate that physically active women have a lower risk of developing breast cancer than inactive women; however, the amount of risk reduction achieved through physical activity varies widely (between 20% and 80%).

Although most evidence suggests that physical activity reduces breast cancer risk in women both before and after menopause, high levels of moderate and vigorous physical activity during adolescence may be especially protective. While ideally women should be active and exercising regularly throughout their life, women who increase their physical activity after menopause may also experience a reduced risk compared with inactive women.

Existing evidence shows a decreasing risk of breast cancer as the frequency and duration of physical activity increase- that is, the more often and longer you exercise, the less your risk of developing breast cancer. Most studies suggest that 30 to 60 minutes per day of moderate- to high-intensity physical activity is associated with a reduction in breast cancer risk.

Limit alcohol

Less is better , none is best. Research consistently shows that drinking alcohol increases your risk of breast cancer. The more alcohol you consume, the greater your risk. Alcohol can increase levels of oestrogen and other hormones associated with hormone-receptor-positive breast cancer. Alcohol also may increase breast cancer risk by damaging DNA in cells.

To decrease your risk of breast cancer, limit your alcohol intake. Women are recommended to have 11 units or less of alcohol a week, and no more than 2 units a day. Try to have days where you consume no alcohol at all. Remember, one drink does not equal one unit. A large wine glass may hold up to a third of a bottle of wine, so a large glass may contain 2-3 units of alcohol.

Don’t smoke

Smoking is undoubtedly linked to a number of serious diseases, including cancers such as bladder, pancreas, kidney, liver, stomach, bowel, cervix, and ovary cancer. Smoking is also linked to a higher risk of breast cancer in younger, premenopausal women. Research also has shown that there may be a link between very heavy second-hand smoke exposure and breast cancer risk in postmenopausal women.

Women who smoke are also at an increased risk of complications during treatment for breast cancer including damage to their lungs from radiotherapy and difficulty healing after breast surgery. Women who smoke are also at a higher risk of blood clots while taking hormone replacement therapy (HRT).

If you don’t smoke, don’t start. If you do smoke, stop now. Getting the right support means that you are twice as likely to be successful and quit for good. You can contact the HSE Quit service for free advice. Click here to visit their website. You can also FREEPHONE 1800 201 203 or FREETEXT QUIT to 50100.

Breastfeed your baby

Breastfeeding lowers the risk of breast cancer, especially in premenopausal women.

In a pooled analysis of data from 47 studies which was published in the Lancet in 2002, mothers who breastfed for a total of one year over the total of their lifetime were slightly less likely to get breast cancer than those who never breastfed. Mothers who breastfed for a total of two years over their lifetime got about twice the benefit of those who breastfed for a total of one year.

Mothers who breastfed for a lifetime total of more than two years got even more benefit. Although data are limited, breastfeeding for less than one year may also modestly lower breast cancer risk.

Breast Cancer Screening

Breast screening in a vital step in the prevention and early detection of breast cancer.

Screening aims to find cancers at an early stage when they are too small for you to see or feel. When breast cancer is found at an early stage, there is an excellent chance of successful treatment.

Women in Ireland are invited for a mammogram (breast x-ray) every two years from ages 50 to 69. This is a free service offered by BreastCheck which is the National Breast Screening Programme. Make sure that you are on the register by contacting BreastCheck on Freephone 1800 45 45 55 or checking online at www.breastcheck.ie and register here.

The importance of being breast aware

We can help to reduce our breast cancer risk by eating healthily, maintaining a healthy weight, not smoking, and drinking alcohol in moderation.  Unfortunately there is little we can do about some of the other risks, apart from being aware of them. But you can be aware of breast changes to look out for.  It is important to attend for breast screening tests with BreastCheck when you are invited.

Some useful Breast Cancer resources…

01

What You Should Know

A summary of the signs and symptoms, advice on how to check your breasts and an overview on how breast cancer is diagnosed and treated.

Learn more
02

Risk Factor

Read about the factors that can increase or reduce your risk of breast cancer.

Learn more
03

Symptoms

Information on the signs and symptoms of breast cancer, how to check your breasts and what to do if you find something.

Learn more
04

Prevention

We can take steps to reduce our breast cancer risk.

Learn more
05

How To Check Your Breasts

Find out what to look and feel for.

Learn more
06

Diagnosing Breast Cancer

Find out about seeing your GP, referral to a specialist and tests you might have.

Learn more
07

Your Breasts

Find out about the structure of the breasts and about the lymphatic glands.

Learn more
08

Inflammatory Breast Cancer

This page has information about diagnosis, treatment and side effects.

Learn more

Check Monthly

One week after the end of your period is the best time. If you have reached the menopause, check your breasts on the same day every month.

Look For Changes

Stand in front of a mirror with your hands in the air. Look for changes in size or shape, puckering, dimpling or redness of the skin.

Feel For Changes

Using your fingers, check for any lumps, thickening or bumps.

Areas Not To Forget

Gently squeeze the nipple to check for discharge. Check your armpit as breast tissue also extends here.

Talking

Breast Cancer

This season we are talking about breast cancer. Helen Forristal, Director of Nursing services at the Marie Keating Foundation hosts this informative and impactful 5-episode patient-led series.
This season focuses on open and honest discussions with two groups of women. Three women living with Metastatic breast cancer and two women Surviving and thriving after localized breast cancer. These women share valuable insights from their unique experiences at every step of their journey. They share what they wish they knew and what they want others to know that may be hugely supportive to anyone newly diagnosed.
This season we are letting the patient voice take the lead. Season 4 is for patients by patients.
With thanks to our co-sponsors…
Season 4

Talking Breast Cancer

Here’s a sneak peek at what to expect from this series of The Marie Keating Foundation Talks Breast Cancer!

Season 4

Episode 1: Breast Cancer in Ireland

Talking Breast Cancer Season 4 Episode 1 : Breast Cancer in Ireland

This series we are talking Breast Cancer and letting the patient voice take the lead. Season 4 is for patients, by patients. We are kicking it off in episode one by setting the foundations of Breast Cancer in Ireland.

In this episode Director of Nursing, Helen Forristal talks to CNS, Niamh Byrne and ANP, Carol Spillane from The St James Hospital Breast care clinic.

The topics covered include, Facts, stats and background to Breast Cancer in Ireland. Signs and Symptoms, when to go to your GP, Family History, Influence of Covid and so much more valuable information.

Season 4

Episode 2: A discussion with two women about living with and beyond a Localised Breast Cancer Diagnosis

From here onwards we let the patient voices take the lead.

In this episode we talk to Erica Tierney and Paula Gleeson from The Marie Keating Foundation Survive and Thrive community about living with and beyond a localised breast cancer diagnosis.

This episode covers a wide range of valuable information that stems from the lived experiences of these women.

We discuss, at diagnosis what would they like women or men to know that they did not know back then?
Treatments, the benefits versus risks, family history, choices, trauma, follow up, support services and so much more.

Season 4

Episode 3: Living with Metastatic Breast Cancer

In this episode we have the privilege of talking to three women from The Marie Keating Foundation Positive Living Community, Aine Murphy, Deirdre Digan and Lisa Dowling. These women will take us through their unique experiences living with metastatic breast cancer and want the listeners to understand what it means to have an incurable cancer. They will also enlighten us on what they would like women and men to know that they did not know.

They will talk us through diagnosis, treatment, risks, family history, communication, clinical trials, counselling, palliative care, nutrition, and exercise, going back to work and so much more in this incredibly impactful conversation.

Season 4

Episode 4, Part 1: Survivorship and Living with and Beyond Cancer

We have reached the final episode of this series There is so much valuable information in this episode that we have made it a 2 Part.

What a journey we have been on discussing every step of a breast cancer journey. In these episodes we are continuing with the patient voice as we discuss survivorship, living with and beyond cancer and how the women we spoke to in this series have learned to live their best lives despite cancer.

Each offers valuable insight and advice from their own unique experience culminating in conversations packed with information for anyone facing a similar journey or those with family, friends or work colleagues facing a breast cancer journey. These episodes cover topics like returning to work, need for public education, chemotherapy, symptom tracking, such as fatigue, pain, peripheral Neuropathy. We discuss weight loss and gain, sexual function, menopause, depression, hair loss, trauma and so much more.

They will talk us through diagnosis, treatment, risks, family history, communication, clinical trials, counselling, palliative care, nutrition, and exercise, going back to work and so much more in this incredibly impactful conversation.

Season 4

Episode 4, Part 2: Survivorship and Living with and Beyond Cancer

A continuation of the important conversations started in Part 1.

How to reduce your risk of breast cancer

Learn more about how you can reduce your risk of breast cancer.

Be a healthy weight

Being overweight or obese after menopause increases the risk of breast cancer. If you are overweight, try to reduce your intake of sugary and processed foods and eat more fruit and vegetables.

Limit alcohol

Research consistently shows that drinking alcohol increases your risk of breast cancer. The more alcohol you drink, the greater your risk. Women are recommended to have 11 units or less of alcohol a week, and no more than 2 units a day. Try to have days where you consume no alcohol at all. If you have been diagnosed with breast cancer you should consider giving up alcohol.

Get active

Most studies indicate that physically active women have a lower risk of developing breast cancer than inactive women. The more often and longer you exercise, the less your risk of developing breast cancer. Aim for 30 to 60 minutes per day of moderate- to high-intensity physical activity.

Breast feed

Breastfeeding lowers the risk of breast cancer, especially in premenopausal women. Mothers who breastfeed for a total of one year over the total of their lifetime are slightly less likely to get breast cancer than those who have never breastfed.

Check Your Breasts

Unfortunately there is little we can do about some risks associated with breast cancer apart from being aware of them. But you can be aware of breast changes to look out for.  It is important to attend for breast screening tests with BreastCheck when you are invited. You should also check your breasts once a month, looking and feeling for any changes.

Don’t smoke

Smoking is linked to a higher risk of breast cancer in younger, pre-menopausal women. Research has also shown that there may be a link between very heavy second-hand smoke exposure and breast cancer risk in post-menopausal women.

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