This recent study showed that women who use hormonal birth control methods may have a small increased risk of breast cancer, but the overall risk of breast cancer in hormonal birth control users remains very low. The contraceptive pill slightly increases breast cancer risk, but decreases ovarian and womb cancer risk. Find out more about the pill, cancer risk, and deciding what contraception is right for you. Birth control pills have some risks including a small increased risk of breast cancer with current or recent use. However, in addition to preventing pregnancy, birth control pills decrease the risk of uterine and ovarian cancers [45-47]. Studies show that there is a small increased risk of breast cancer among women who use hormonal contraceptives. Most of that research has focused on women who were taking contraceptive pills that contained a combination of estrogen and progestin. If you currently take or have taken birth control pills in the recent past, you are slightly more likely to develop breast cancer than women who've never used them. Oral contraceptives (also known as birth control pills) may slightly increase your risk of getting breast and cervical cancers. And the longer you use birth control pills, the higher your risk of. Scandinavian researchers noted an increase in breast cancer in a group of women that were currently taking or had recently taken birth control pills. Longer use of the pill seemed to. Breast cancer: An analysis of data from more than 150,000 women who participated in 54 epidemiologic studies showed that, overall, women who had ever used oral contraceptives had a slight (7%) increase in the risk of breast cancer compared with women who had never used oral contraceptives. Studies have shown that having ever taken the pill increases your risk of breast cancer. However, your risk decreases after you go off the pill. Do birth control pills cause breast cancer? Find studies worldwide that show a mixed result on the connection between birth control pills and breast cancer.