Understanding the risk factors for breast cancer is an important step toward early detection and prevention. This page provides key information and resources to help you stay informed and proactive about your breast health.
The risk of breast cancer increases with age. Most breast cancers are diagnosed in women over the age of 50. Regular screening is crucial for early detection, especially as women age.
A family history of breast cancer can significantly increase your risk. Genetic mutations, including BRCA1 and BRCA2, are known to elevate the risk of both breast and ovarian cancers. Women with these mutations may consider genetic counseling and more frequent screenings. Private referrals can be made to Kate Gibson, Clinical Geneticist here at Canterbury Breastcare.
Exposure to oestrogen over a long period can increase breast cancer risk. This includes factors such as early menstruation (before age 12), late menopause (after age 55), and some types of hormone replacement therapy (MHT) during menopause
Women who have not had children or who had their first child after age 30 may have a slightly higher risk of breast cancer. Breastfeeding, on the other hand, can lower the risk.
Certain lifestyle choices can also impact breast cancer risk:
Radiation treatments, particularly to the chest area during childhood or young adulthood, can increase the risk of developing breast cancer later in life.
Screening is recommended from age 25, or 8 years from completion of radiation treatment if you have had Mantle field, chest or lung radiation (e.g. for lymphoma/sarcoma).
Breast density refers to the proportion of fibrous and glandular tissue compared to fatty tissue in the breasts, as seen on a mammogram. Women with high breast density have more fibrous and glandular tissue, which can make it harder to detect abnormalities on mammograms, and also increases the chance of developing a cancer in the tissue.
High Breast density increases risk 3-4 x compared to women with low Breast density.
Understanding these risk factors can help in making informed decisions about breast cancer screening and prevention. If you have concerns about your risk factors, including family history and breast density, consult with your healthcare provider to discuss appropriate screening options and preventive measures.
For more information or to schedule a mammogram, please contact our radiology service. Early detection is key to successful treatment and better outcomes.
Canterbury Breastcare Risk Based Breast Screening Recommendations
Risk factors we can't change (Breast Cancer Foundation)
Lower your risk of breast cancer (Breast Cancer Foundation)
Factors that don't cause breast cancers (Breast Cancer Foundation)
Risk Reduction and Healthy Lifestyle Choices - PDF (Breast Cancer Foundation)
Eating well and managing changes in your weight - PDF (Cancer Society)
Inherited risks:
Inherited Risks FAQs (Breast Cancer Foundation)
Know Your Risks - should you be referred (Breast Cancer Foundation)
Genetic Counselling & Testing (Breast Cancer Foundation) : Private referrals are invited to Kate Gibson, Clinical Geneticist, Canterbury Breastcare for discussion of genetic risk and testing