The<unk>  is a pseudoscientific belief that having an induced<unk>  can increase the risk of getting<unk><unk> . This<unk>  is at odds with mainstream scientific opinion and is rejected by major medical professional organizations. In early pregnancy, hormone levels increase, leading to<unk>  growth. The<unk>  proposes that if this process is altered by an<unk> , then more immature cells could be left behind, and that these immature cells could increase the risk of<unk><unk>  over time. The<unk>  has been the subject of extensive scientific inquiry, and the scientific community has concluded that<unk>  does not cause<unk><unk>  and that<unk><unk>  should not be a<unk> n for women who are having a miscarriage or considering having an<unk> . This consensus is supported by major medical bodies, including the World Health Organization, the U.S. National<unk>  Institute, the American<unk>  Society, the American Congress of Obstetricians and Gynecologists, the Royal College of Obstetricians and Gynaecologists, the German<unk>  Research Center, and the Canadian<unk>  Society. Some anti-abortion activists have continued to advance a discredited causal link between<unk>  and<unk><unk> . In the United States, they have advanced state legislation that in several states requires health care providers to present<unk>  as a cause of<unk><unk>  when counseling women who are seeking<unk> . This political intervention culminated when the George W. Bush administration altered the National<unk>  Institute website to suggest that<unk>  might cause<unk><unk> . In response to public<unk> n over this intervention, the NCI convened a 2003 workshop bringing together over 100 experts on the issue. This workshop concluded that while some studies reported a statistical correlation between<unk><unk>  and<unk> , the strongest scientific evidence from large prospective cohort studies demonstrates that<unk>  is not associated with an increase in<unk><unk>  risk, and that the positive findings were likely due to response bias. The ongoing promotion of a link between<unk>  and<unk><unk>  is seen by others as part of the anti-abortion "woman-centered" strategy against<unk> . Anti-abortion groups maintain they are providing information necessary for legally required informed consent, a<unk> n shared by some politically conservative politicians. The<unk><unk><unk>  issue remains the subject of political controversy.
Abortion–breast cancer hypothesis
Nuclear sexing
Antiestrogen withdrawal response
Hereditary breast–ovarian cancer syndrome
Feminizing hormone therapy
Estrogen and neurodegenerative diseases
Abortion debate
Ovulatory shift hypothesis