The study found that women who used birth control pills for a long time had a lower overall lifetime cancer risk

Last year, Dr Lisa Iversen and others published a research result in the American Journal of Obstetrics and gynecology Compared with women who have never used contraceptives, women who have used contraceptives for a long time have a 56.1% lower overall lifetime cancer risk The main cancers that have been reduced include colon cancer, endometrial cancer, ovarian cancer, and lymphohematological malignancy Research shows that women taking hormone contraceptives can benefit from endometrial cancer, ovarian cancer, rectal cancer and so on, reduce the risk of disease, and it can last for several years after drug withdrawal The study found that although the risk of breast cancer and cervical cancer increased (statistically significant) among women taking contraceptives continuously or newly, the risk basically disappeared after 5 years of discontinuation, and there was no evidence that it would increase the recurrence rate of cancer However, compared with women who did not take oral contraceptive pills, the incidence rate of colorectal cancer, endometrial cancer and ovarian cancer decreased by 19%, 34% and 33% respectively There is also no evidence of new cancer risks in women taking oral hormonal contraceptives, so the overall cancer risk of oral hormonal contraceptives is acceptable Long term use may reduce women's exposure to "estradiol" during menstruation, as oral contraceptives supplement progesterone So as to reduce the incidence of some malignant tumors.