Breast Cancer Prevention: Key Facts, Risk Factors

a Quiz to Test Your Knowledge

In honor of Breast Cancer Awareness Month, also known as Octobre Rose, raising awareness about breast cancer prevention remains crucial. Early detection is the most effective way to diagnose and treat breast cancer, significantly increasing survival rates. Prevention strategies, coupled with regular screenings, can also help reduce the risk. In this article, we’ll explore key facts about breast cancer, risk factors, and how early detection can save lives. Test your knowledge with our quiz and discover important information that can empower you and your loved ones to take charge of breast health.

1. Breast cancer is the most common cancer among women in Switzerland. True or False?

Answer: True.
Breast cancer is the leading cancer diagnosed in women in Switzerland, with approximately 6,200 new cases annually​. Globally, it remains the most frequent cancer affecting women, underscoring the importance of awareness, education, and regular screenings.

Why it matters:
Understanding the high incidence of breast cancer highlights the importance of early detection and consistent health monitoring. Knowing the prevalence encourages women to take preventive measures and undergo regular mammograms as advised by national guidelines.

2. Breast cancer mainly affects postmenopausal women. True or False?

Answer: True.
Approximately 80% of breast cancer cases are diagnosed in postmenopausal women, typically between the ages of 60 and 69​. Hormonal shifts that occur after menopause, particularly the decrease in estrogen levels, contribute to this heightened risk.

Why it matters:
Women over 50 should be especially vigilant about regular breast cancer screenings. Postmenopausal women should adopt lifestyle habits that reduce breast cancer risk, such as maintaining a healthy weight and staying physically active.

3. Breast cancer is very rare in women under 50. True or False?

Answer: False.
While breast cancer is more common in women over 50, about 20% of cases are diagnosed in younger women​. In Switzerland and globally, there has been a slight increase in breast cancer diagnoses among women under 50, often influenced by genetic factors and lifestyle.

Why it matters:
Even younger women should be aware of their breast cancer risk, especially if they have a family history or known genetic mutations. Early screenings, particularly for high-risk individuals, can lead to early detection and better outcomes.

4. Most breast cancers are hereditary. True or False?

Answer: False.
Only 5-10% of breast cancer cases are due to hereditary genetic mutations, such as those in the BRCA1 and BRCA2 genes​. The majority of breast cancer cases result from a combination of lifestyle, environmental, and hormonal factors.

Why it matters:
Knowing that breast cancer is largely influenced by factors beyond genetics empowers women to take control of modifiable risk factors. However, for those with a family history, genetic counseling and testing can help guide decisions about preventive measures.

5. Regular alcohol consumption increases the risk of breast cancer. True or False?

Answer: True.
Alcohol consumption, even at moderate levels, increases the risk of developing breast cancer. Studies have shown that each alcoholic drink per day raises the risk by about 7-10%​. In Switzerland, it is estimated that around 10% of breast cancer cases are linked to alcohol.

Why it matters:
Reducing alcohol intake is a simple, effective way to lower breast cancer risk. This is particularly important for women with other risk factors such as family history or obesity.

6. Mammography is the only screening method for breast cancer. True or False?

Answer: False.
While mammography is the most widely used and effective screening tool for breast cancer, it is not the only method. Regular breast self-examinations and clinical breast exams are also crucial, especially for women under 50 who may not be eligible for routine mammograms​.

Why it matters:
Breast health awareness is essential for early detection. Women should be familiar with their own bodies and report any changes to a healthcare provider, even between formal screenings.

7. The best time to perform a breast self-exam is just before your period. True or False?

Answer: False.
The ideal time to perform a breast self-exam is just after your period, when breast tissue is less swollen or tender​. This makes it easier to detect any unusual lumps or changes.

Why it matters:
Regular self-exams help women become familiar with how their breasts normally look and feel, making it easier to notice changes early, even between clinical screenings.

8. Organized breast cancer screening in Switzerland is for women aged 50 to 74. True or False?

Answer: True.
Switzerland's national breast cancer screening program invites women between the ages of 50 and 74 to receive mammograms every two years. This organized screening aims to detect breast cancer at an early, more treatable stage​(

Why it matters:
Early detection through organized screening increases the chances of successful treatment, as early-stage cancers are often less aggressive and more responsive to a wider range of treatment options.

9. In more than 70% of breast cancer cases, the breast is preserved during treatment. True or False?

Answer: True.
Breast-conserving surgery, or lumpectomy, is possible in around 70% of breast cancer cases, allowing for the removal of the tumor while preserving the breast. This approach, often combined with radiation therapy, has been shown to be as effective as a full mastectomy in early-stage cancers.

Why it matters:
Many women fear that a breast cancer diagnosis will require a mastectomy, but modern treatment options often allow for breast preservation, improving both physical and emotional recovery.

10. Early detection significantly increases the chances of curing breast cancer. True or False?

Answer: True.
When breast cancer is detected early, the chances of a full recovery are much higher. In fact, early-stage breast cancer is successfully treated in 9 out of 10 cases​. Early detection also means that treatment can be less aggressive and more targeted.

Why it matters:
The earlier breast cancer is caught, the better the prognosis. Regular mammograms, self-exams, and prompt reporting of any changes are essential for catching breast cancer in its early stages.

Breast cancer prevention is a multifaceted effort that involves regular screenings, lifestyle adjustments, and a thorough understanding of personal risk factors. By being proactive and informed, women can significantly reduce their risk of breast cancer or improve their chances of successful treatment if diagnosed early. Share this quiz with others to spread awareness and encourage women in your community to take charge of their breast health.

Colditz, G. A., & Bohlke, K. (2014). Priorities for the primary prevention of breast cancer. CA: A Cancer Journal for Clinicians,

Harbeck, N., Penault-Llorca, F., Cortes, J., Gnant, M., Houssami, N., Poortmans, P., ... & Loibl, S. (2019). Breast cancer. Nature Reviews Disease Primers,

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