hormonal birth control methods, including pills and IUD, may increase the risk of breast cancer in women, according to a new study in the J-A-M-A internal medicine journal. The study analyzed data from nearly two million women over a 10-year period, and found that the risk of breast cancer was highest among women who used hormonal birth control for more than 10 years. While the study does not prove that hormonal birth control causes breast cancer, it does suggest that there may be a link between the two. The increased risk of breast cancer associated with hormonal birth control is small, and other factors such as age, family history, and alcohol consumption may also contribute. However, the findings underscore the importance of considering a woman's individual risk factors when deciding on a contraceptive method. Women who are concerned about their risk of breast cancer may want to discuss alternative contraceptive options with their healthcare providers.