Can Birth Control Pills Reduce Ovarian and Endometrial Cancer Risk? - Obstetrics and Gynecology

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Taking contraceptive pills?


Hello, doctor.
I've heard that taking contraceptive pills can reduce the risk of endometrial cancer and ovarian cancer.
After undergoing surgery for adenomyosis and ovarian cysts, could you prescribe contraceptive pills for long-term use to lower my cancer risk?

Hui, 30~39 year old female. Ask Date: 2015/11/24

Dr. Lin Wenbin reply Obstetrics and Gynecology


There are many options for medication, not limited to just contraceptives.
Please visit the outpatient clinic for an examination and prescription.

Reply Date: 2015/11/24

More Info


Yes, birth control pills can indeed reduce the risk of ovarian and endometrial cancers. This is a significant finding supported by various studies in the medical field. The protective effect of oral contraceptives against these types of cancer is primarily attributed to the hormonal regulation they provide, which can help maintain a healthy balance of estrogen and progesterone in the body.

When a woman takes birth control pills, the hormones in the pills prevent ovulation. This means that the ovaries are not subjected to the repeated cycles of ovulation that can lead to cellular changes and, potentially, cancer. Studies have shown that women who use oral contraceptives for an extended period (typically five years or more) have a significantly lower risk of developing ovarian cancer compared to those who have never used them. The protective effect can last for many years after discontinuation of the pills.

Similarly, for endometrial cancer, the use of birth control pills can help reduce the risk by regulating the growth of the endometrial lining. Estrogen is known to stimulate the growth of the endometrium, and when it is unopposed by progesterone (which is provided in combination pills), it can lead to hyperplasia and increase the risk of cancer. By taking birth control pills, the regular shedding of the endometrial lining occurs, which can help prevent the development of cancerous cells.

In your case, after undergoing surgery for adenomyosis and ovarian cysts, discussing the long-term use of birth control pills with your healthcare provider is a prudent step. They can evaluate your individual health history, the specifics of your surgery, and any other risk factors you may have. It is essential to have a personalized approach to your health care, as the benefits of birth control pills must be weighed against any potential risks, such as blood clots or other side effects.

Moreover, it is important to note that while birth control pills can reduce the risk of these cancers, they are not a guarantee against them. Regular screenings and discussions about family history and genetic predispositions (such as BRCA mutations) are also crucial in managing cancer risk. If there is a strong family history of ovarian or endometrial cancer, genetic counseling may be beneficial.

In summary, birth control pills can be an effective strategy for reducing the risk of ovarian and endometrial cancers, particularly for women with certain risk factors. However, it is essential to have an open dialogue with your healthcare provider to determine the best course of action tailored to your specific health needs and circumstances. Regular follow-ups and screenings will also play a vital role in maintaining your reproductive health and overall well-being.

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