The vast majority of scientific studies have shown that abortion causes an increase in breast cancer, including 16 out of 17 statistically significant studies.<ref>http://www.jpands.org/vol8no2/malec.pdf</ref> Studies showing that abortion increases breast cancer predate the political controversy.<ref>http://www.bcpinstitute.org/brochure.htm</ref> It is undisputed that childbirth protects against breast cancer, and thus early termination of pregnancy must increase the risk of cancer for the mother compared to carrying that same pregnancy to birth. Yet the abortion industry conceals this increased risk, just as the tobacco industry concealed its cancer risk for decades.<ref>http://www.mindfully.org/Industry/Tobacco-ChronologyJul98.htm</ref>
A new study on breast cancer in Turkey published in April 2009 in the peer-reviewed World Journal of Surgical Oncology found, through a surveying process, that induced abortion was a statistically significant cause of breast cancerrisk. The study concludes, “Our findings suggest that age and induced abortion were found to be significantly associated with increased breast cancer risk….”<ref>http://wjso.com/content/7/1/37</ref>
Specifically, the study found that Turkish women who received one or more induced abortions had a 66% higher risk of breast cancer than women who never had an abortion.<ref>http://www.lifesitenews.com/ldn/2009/jul/09072903.html</ref> <ref>http://www.abortionbreastcancer.com/press_releases/090728/index.htm</ref>