Birth Control Pills and Breast Cancer: What You Need to Know - Obstetrics and Gynecology

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Birth control pills and breast cancer?


Hello, doctor.
I am 27 years old and currently abroad, taking oral contraceptives (in the first month).
I discussed with foreign doctors whether it would increase the risk of breast cancer, and they said it would not.
However, I found information online suggesting it could lead to breast cancer.
What is the opinion of Taiwanese doctors on this matter? (My biological mother was diagnosed with breast cancer at the age of 47 and passed away four years later, so I am concerned about potential hereditary issues.) Should I consider other contraceptive methods, or is it only long-term use that may lead to breast cancer? Thank you!

Miss Lin, 20~29 year old female. Ask Date: 2016/02/26

Dr. Cao Guotao reply Obstetrics and Gynecology


Hello, the risk of breast cancer associated with regular contraceptive pills is very low, and they should be safe to use.
If you still have concerns, you might consider using an intrauterine device (IUD).
Wishing you good health.

Reply Date: 2016/02/26

More Info


When it comes to the relationship between birth control pills and breast cancer, the topic is complex and often leads to confusion among patients, especially those with a family history of breast cancer. As a 27-year-old woman with a personal concern about breast cancer due to your mother's history, it's understandable that you seek clarity on this matter.

Firstly, research has shown that the use of hormonal contraceptives, including birth control pills, can have varying effects on breast cancer risk. The consensus among many health organizations, including the American Cancer Society and the World Health Organization, is that while there may be a slight increase in the risk of breast cancer among women who currently use hormonal contraceptives, this risk diminishes after discontinuation of the pills. The increase in risk is generally considered to be small, especially when compared to the overall benefits of hormonal contraceptives, which include effective pregnancy prevention and regulation of menstrual cycles.

In your case, since your mother was diagnosed with breast cancer at the age of 47, it is essential to consider your family history. Women with a first-degree relative (such as a mother or sister) who has had breast cancer may have a higher risk of developing the disease themselves. This familial risk factor is significant and should be discussed with your healthcare provider, who may recommend more frequent screenings or genetic testing for BRCA1 and BRCA2 mutations, which are linked to hereditary breast and ovarian cancer.

Regarding your question about whether to choose other contraceptive methods, it is crucial to weigh the benefits and risks of each option. Non-hormonal methods, such as copper IUDs or barrier methods (like condoms), do not carry the same potential risks associated with hormonal contraceptives. However, they may not provide the same benefits in terms of menstrual regulation or other hormonal effects.
If you are concerned about the long-term use of birth control pills and their potential link to breast cancer, it may be worth considering a discussion with your healthcare provider about alternative contraceptive methods. They can help you evaluate your personal risk factors, including family history, and guide you toward the most suitable option for your lifestyle and health needs.

In summary, while there is some evidence suggesting a slight increase in breast cancer risk associated with current use of hormonal contraceptives, this risk is generally small and decreases after stopping the pills. Given your family history, it is advisable to have an open dialogue with your healthcare provider about your concerns, potential genetic testing, and the most appropriate contraceptive method for you. Regular breast screenings and self-examinations are also essential components of proactive health management, especially for those with a family history of breast cancer.

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