“As with many other diseases, your risk of breast cancer
goes up as you get older. About two out of three
invasive breast cancers are found in women 55 or older”.1

Umbrella

What may the Breast Cancer Umbrella include?

Depending on the Source (DotS) this Umbrella may include:

  • Breast Cancer
  • Cancer of the Breast
  • Ductal Carcinoma

Definition

What is breast cancer?

DotS the definition of breast cancer may vary. The (United States) National Cancer Institute’s (NCI) definition:

“Breast Cancer
Cancer that forms in tissues of the breast”.2

The (United States) Breastcancer.org’s definition is:

“Breast cancer starts when abnormal cells in the breast grow and multiply uncontrollably”.3

Types

What are common types of breast cancer?

The NCI explain:

“The most common type of breast cancer is ductal carcinoma, which begins in the lining of the milk ducts (thin tubes that carry milk from the lobules of the breast to the nipple). Another type of breast cancer is lobular carcinoma, which begins in the lobules (milk glands) of the breast. Invasive breast cancer is breast cancer that has spread from where it began in the breast ducts or lobules to surrounding normal tissue. Breast cancer occurs in both men and women, although male breast cancer is rare”.4

Common or Not

How common is breast cancer?

In the United States according to the (United States) Centers for Disease Control and Prevention (CDC):

“Breast cancer is the second most common cancer among women in the United States. (Some kinds of skin cancer are the most common.) Breast cancer is the second leading cause of cancer death among women in the United States. (Lung cancer is the leading cause of cancer death.) For non-Hispanic Black women and Hispanic women, breast cancer is the leading cause of cancer death”.5

In the United Kingdom (UK) according to the (United Kingdom) NHS:

“Breast cancer is cancer that’s found in the breasts. It’s the most common type of cancer in women in the UK. Anyone can get breast cancer”.6

Risk

How may breast cancer risk be lowered?

In Breast Cancer Risk Factors Breastcancer.org elaborate on known and emerging breast cancer risk factors explaining:

“Everyone wants to know what they can do to lower their breast cancer risk. Although doctors don’t know what causes breast cancer, they do know there are factors linked to a higher-than-average risk of developing the disease. Some factors associated with an increase in breast cancer risk — being a woman, your age, and your genetics, for example — can’t be changed. Other factors — lack of exercise, smoking cigarettes, and eating certain foods — can be altered by making lifestyle choices.

By choosing the healthiest lifestyle options possible, you can empower yourself and make sure your breast cancer risk is as low as possible”.7

In Breast Cancer Treatment (PDQ)–Patient Version: General Information About Breast Cancer — A Family History of Breast Cancer and Other Factors Increase the Risk of Breast Cancer the NCI elaborate on these and more risk factors for breast cancer:

“Risk factors for breast cancer include the following:

  • A personal history of invasive breast cancer, ductal carcinoma in situ (DCIS), or lobular carcinoma in situ (LCIS)
  • A personal history of benign (noncancer) breast disease
  • A family history of breast cancer in a first-degree relative (mother, daughter, or sister)
  • Inherited changes in the BRCA1 or BRCA2 genes or in other genes that increase the risk of breast cancer
  • Breast tissue that is dense on a mammogram
  • Exposure of breast tissue to estrogen made by the body. This may be caused by:
    • Menstruating at an early age
    • Older age at first birth or never having given birth
    • Starting menopause at a later age
  • Taking hormones such as estrogen combined with progestin for symptoms of menopause
  • Treatment with radiation therapy to the breast/chest
  • Drinking alcohol
  • Obesity.

Older age is the main risk factor for most cancers. The chance of getting cancer increases as you get older”.8

Age

In women, is age a risk factor for breast cancer?

In Know Your Risk: Breast Cancer Risk Factors – Age Breastcancer.org also note:

Breast Cancer“As with many other diseases, your risk of breast cancer goes up as you get older. About two out of three invasive breast cancers are found in women 55 or older”.9

Hormone Therapy

What is the association between hormone therapy (HT) and breast cancer risk?

On page three in the Joint Position Statement By the British Menopause Society, Royal College of Obstetricians and Gynaecologists and Society for Endocrinology on Best Practice Recommendations for the Care of Women Experiencing the Menopause, first published online 10 June 2022, one of the recommendations is:

“A history of breast cancer should be considered a contraindication to systemic HRT. The risk of breast cancer recurrence with HRT is higher in women with oestrogen receptor positive cancer, but women with oestrogen receptor negative breast cancer are also considered to have an increased risk of recurrence with HRT. HRT may, in exceptional cases, be offered to women with breast cancer with severe menopausal symptoms if lifestyle modifications and non-hormonal treatment options are not effective. This should be done after discussion with the woman, her menopause specialist and her breast/oncology team”.10

Alcohol

Is there an association between alcohol and breast cancer risk?

In Alcohol and Breast Cancer Risk: How Much Is Safe To Drink? Breastcancer.org elaborate on:

“The research is still emerging, and an amount to drink that’s “safe” is still being studied. But it’s clear that cancer risks go up as alcohol consumption goes up — and it’s also clear that drinking less (or not at all) has benefits. Whether or not you have a history of breast cancer, it’s important to talk to your doctor about your risk of developing breast cancer and how — or if — alcohol fits into that.

If you want to do everything you can to lower your breast cancer risk, limiting how much alcohol you drink makes sense. You may choose to stop drinking alcohol completely. But if you plan to continue drinking, try to have as few alcoholic drinks per week as possible”.11

Men

Can men get breast cancer?

Yes. In Male Breast Cancer Treatment (PDQ)–Patient Version: Overview – General Information About Male Breast Cancer the NCI note in the U.S.:

“Male breast cancer is a disease in which malignant (cancer) cells form in the tissues of the breast.

Breast cancer may occur in men. Breast cancer may occur in men at any age, but it usually occurs in men between 60 and 70 years of age. Male breast cancer makes up less than 1% of all cases of breast cancer”.12

Health Care Provider

What if I notice changes with my breasts?

If you notice any changes with your breasts, it may be in your best interest to choose to talk to you health care provider about this as soon as possible.

Health Topics A-Z

Where may I find Health Topics A-Z related to Breast Cancer?

In Health Topics A-Z you may find:

Links

Where may I find Links related to Breast Cancer?

Your Country may have Links similar to:

Sources

Where may I find the Sources quoted?

You may find the Sources quoted at:

Sources

  1. Know Your Risk: Breast Cancer Risk Factors – Age. Last Updated: 23 February 2023. Breastcancer.org https://www.breastcancer.org/risk/risk-factors/age Accessed: 23 October 2025
  2. NCI Dictionary of Cancer Terms: B – Breast Cancer. National Cancer Institute https://www.cancer.gov/publications/dictionaries/cancer-terms/expand/B Accessed: 23 October 2025
  3. What Is Breast Cancer? How Does Breast Cancer Start? Last Updated: 08 August 2025. Breastcancer.org https://www.breastcancer.org/about-breast-cancer Accessed: 23 October 2025
  4. NCI Dictionary of Cancer Terms: B – Breast Cancer. National Cancer Institute https://www.cancer.gov/publications/dictionaries/cancer-terms/expand/B Accessed: 23 October 2025
  5. Breast Cancer: Breast Cancer Statistics – What To Know. 10 June 2025. Centers for Disease Control and Prevention https://www.cdc.gov/breast-cancer/statistics/index.html Accessed: 23 October 2025
  6. Breast Cancer In Women. NHS https://www.nhs.uk/conditions/breast-cancer-in-women/ Accessed: 23 October 2025
  7. Breast Cancer Risk Factors. Last Updated: 09 October 2025. Breastcancer.org https://www.breastcancer.org/risk/factors Accessed: 23 October 2025
  8. Breast Cancer Treatment (PDQ)–Patient Version: General Information About Breast Cancer – A Family History of Breast Cancer and Other Factors Increase the Risk of Breast Cancer. Updated: 11 December 2024. National Cancer Institute https://www.cancer.gov/types/breast/patient/breast-treatment-pdq Accessed: 23 October 2025
  9. Know Your Risk: Breast Cancer Risk Factors – Age. Last Updated: 23 February 2023. Breastcancer.org https://www.breastcancer.org/risk/risk-factors/age Accessed: 23 October 2025
  10. Hamoda, H., Mukherjee, A., Morris, E., Baldeweg, S. E., Jayasena, C. N., Briggs, P., Moger, S. Optimising the Menopause Transition: Joint Position Statement By the British Menopause Society, Royal College of Obstetricians and Gynaecologists and Society for Endocrinology on Best Practice Recommendations for the Care of Women Experiencing the Menopause. First Published Online 10 June 2022:1 https://journals.sagepub.com/doi/10.1177/20533691221104882 Accessed: 23 October 2025
  11. Alcohol and Breast Cancer Risk. Last Updated: 01 October 2025. Breastcancer.org https://www.breastcancer.org/risk/risk-factors/drinking-alcohol Accessed: 23 October 2025
  12. Male Breast Cancer Treatment (PDQ)–Patient Version: Overview – General Information About Male Breast Cancer. Updated: 23 August 2024. National Cancer Institute https://www.cancer.gov/types/breast/patient/male-breast-treatment-pdq#section/_69 Accessed: 23 October 2025
Topic Last Updated: 23 October 2025 – Topic Last Reviewed: 23 October 2025