Studies - Breast Cancer

10 Recent Studies Linking Abortion to Elevated Breast Cancer Risk (2009 – 2014)

Does Abortion Cause Breast Cancer ?

Yes, it does.

Is Abortion Linked to Breast Cancer?  Yes.

Does Induced Abortion Increase Breast Cancer Risk ?  Yes.

In fact, the National Cancer Institute in the U.S.A. accidentally admitted induced abortion is associated with elevated breast cancer risk in April 2009.

What Are Risk Factors For Breast Cancer ?  Answer: Induced abortion & hormonal contraceptive

There are now at least 10 breast cancer research papers published very recently in years 2009 – 2014 which state in their findings that induced abortion is linked to elevated breast cancer risk.  This blog focuses on the 10 most recent studies from 2009 – 2014 although in the past 5 decades, there have been approximately 50 studies linking abortion to breast cancer. 

Here is a list of epidemiologic studies investigating induced abortion and breast cancer risk:

1st Breast Cancer Research Paper (Year 2009) Linking Abortion To Breast Cancer:

Fred Hutchinson Cancer Research & National Cancer Institute stated abortion is linked to elevated breast cancer risk in a 2009 published research paper titled, "Risk Factors For Triple-Negative Breast Cancer In Women Under The Age of 45 Years." Study was published in Cancer Epidemiol Biomarkers Prevention Journal 2009: 18 (4) April 2009.

Line 3-5 at the top left column of page 1163 in Cancer Epidemiol Biomarkers Prevention Journal, the study clearly concludes, "…..induced abortion & contraceptive use were associated with increased risk for breast cancer."

The last row of Table 1 on page 1158 also states a single abortion raises breast cancer risk by 40%

In this paper, the authors list in Table 4: Multivariate adjusted case-control odds ratios for all breast cancer cases, triple-negative and non-triple-negative cases, in relation to oral contraceptive risk factors, stratified by age at diagnosis under age 40 and 41-45 y, the following devastating information:

The risks for acquiring the deadliest, most aggressive and difficult to treat form of breast cancer, Triple Negative Breast Cancer based on age of first use of oral contraceptives is:

Age 22+: 250%
Age 18-22: 270%
Age Under 18: 540%

In other words, this research paper indicates that women who begin oral contraceptive use before age 18 are at a 540% increased risk of developing the most aggressive and deadly form of breast cancer, triple negative breast cancer.

To see the 10 page report for yourself, please view the report on the American Association of Cancer Research website:

This 10 page breast cancer research report is also available at the websites below:

To read an analysis of this paper published by Fred Hutchinson Cancer Research & National Cancer Institute, please visit:

2nd Breast Cancer Research Paper (1996) Linking Abortion To Breast Cancer:

This study was conducted by Fred Hutchinson Cancer Research & was published in American Journal of Epidemiology. It concludes in part, “Among women who had been pregnant at least once, the risk of breast cancer in those with a prior induced abortion was 20% higher than that in women with no history of abortion (95% confidence interval 1.0–1.5). “

To read:
"Risk of Breast Cancer among White Women following Induced Abortion"
Dr. Janet R. Daling, The Fred Hutchinson Cancer Research Center, Am J Epidemiol 1996; 144: 373–80.

"Among women who had ever been pregnant, the breast cancer risk in those with one or more induced abortion was 1.2 (95% confidence interval [CI], 1.0-1.5) (20% higher) relative to women with no abortion history. The breast cancer risk was greatest (2.0; 95% CI, 1.2-3.3) among nulliparous women whose abortion or abortions occurred prior to 8 weeks' gestation. This risk was slightly higher when the abortion was performed before 20 years of age (1.5) or after 29 years of age (1.4)."

To read:

More information about this breast cancer research paper:

3rd Breast Cancer Research Paper (Year 2009) Linking Abortion To Breast Cancer:

This study was published in reputable Journal of Surgery Oncology 2009:

Turkish breast cancer study. Citation: Ozmen et al. Breast cancer risk factors in Turkish women – a university hospital-based nested case control study. Published in World Journal of Surgery Oncology 2009;7:37 Turkish study reported a statistically significant 66% increased risk of breast cancer for women with abortions. It concluded: “These findings suggest that age and induced abortion were found to be significantly associated with increased breast cancer risk whereas oral contraceptive use was observed to be associated with decreased breast cancer risk among Turkish women in Istanbul.

Available at:

4th Breast Cancer Research Paper (Year 2009) Linking Abortion To Breast Cancer:

China breast cancer study by Xing P, Li J, Jin F. A case-control study of reproductive factors associated with subtypes of breast cancer in Northeast China.” Humana Press, e-publication online September 2009. The study’s abstract concluded: “Breastfeeding protected parous women from any subtype of breast cancer. Postmenopause and spontaneous abortion (ie: miscarriage) were inversely associated with the risk of luminal tumors. By contrast, multiparity, family history of breast cancer and induced abortion increased the risk of breast cancer.”

To read abstract:

5th Breast Cancer Research Paper (Year 2010) Linking Abortion To Breast Cancer:

Sri Lanka – De Silva et al. Cancer Epidemiol. 2010 Jun;34(3):267-73. Epub 2010 Mar 24.
Title of research paper, “Prolonged breastfeeding reduces risk of breast cancer in Sri Lankan women: a case-control study.” Published by De Silva M, Senarath U, Gunatilake M, Lokuhetty D

Department of Community Medicine, Faculty of Medicine, University of Colombo, 25 Kynsey Road, Colombo, Sri Lanka.

It concluded, in part: “The significant factors associated with increased risk of breast cancer were: post-menopausal women (OR=1.74; 95%CI=1.01, 3.01); having an abortion in the past (OR=3.42; 95%CI=1.75, 6.66) and exposure to passive smoking (OR=2.96, 95%CI=1.53, 5.75).” In other words, as the Daily Mail UK

reported, although the study was focused on the association between the duration of breastfeeding and the risk of breast cancer, other risk factors were discovered, and “the highest of the reported risk factors was abortion.”

To read abstract:

6th Breast Cancer Research Paper (Year 2010) Linking Abortion To Breast Cancer:

Researchers in Iran have published the results of a new study showing women who have an abortion face a 193% increased risk of breast cancer. On the other hand, women who carry a pregnancy to term find a lowered breast cancer risk compared with women who have never been pregnant.

Title of breast cancer research paper is, “Reproductive factors associated with breast cancer risk in northern Iran” and the findings were reported in the April 3, 2010 issue of Medical Oncology.

Researchers Hajian-Tilaki K.O. and Kaveh-Ahangar T. from Babol University of Medical Sciences compared 100 cases of women who were newly diagnosed with breast cancer compared with 200 age-matched controls to review several reproductive factors.

The researchers discovered abortion significantly elevated breast cancer risks. Also, having a first pregnancy at an older age increases the breast cancer risk by 310 percent.

The study's abstract concluded in part, “Nulliparity, late age at first birth and abortion were the most important reproductive factors associated with breast cancer risk; therefore, it is recommended to women with these risk factors to perform breast cancer screening tests earlier."

The abstract is available at the link below & purchase of the full text is also available:


7th Breast Cancer Research Paper (Year 2011) Linking Abortion To Breast Cancer:

A new study published by scientists who examined diabetes mellitus type 2, reproductive factors, and breast cancer found a statistically significant association showing a 2.86-fold increased breast cancer risk from one induced abortion.

The study, led by Lilit Khachatryan, included researchers from Johns Hopkins School of Public Health and the University of Pennsylvania. Khachatryan is from the Department of Public Health, American University of Armenia, Yerevan, Armenia; Robert Scharpfb is from the Johns Hopkins School of Public Health and Sarah Kagan is from the School of Nursing at the University of Pennsylvania.

The study, published in Taylor & Francis, also found that delaying a first full-term pregnancy, which is frequently done by women having abortions, also raises the breast cancer risk wheras giving birth resulted in a 64% reduced risk.

"Each year delay in first pregnancy increased risk (adjusted OR = 1.13, 95% CI 1.01–1.27) as did induced abortions (adjusted OR = 2.86, 95% CI 1.02–8.04)."
To read this report, please visit


8th Breast Cancer Research Paper (Year 2012) Linking Abortion To Breast Cancer:

A new study published in the Asian Pacific Journal of Cancer Prevention in February reported a very statistically significant increased risk of breast cancer for women with previous abortions as opposed to women who have never had one.
 The study, consisting of 1,351 women and led by researcher Ai-Ren Jiang, reported a statistically significant 1.52-fold elevation in risk for women with induced abortions and a “significant dose-response relationship between (the risk) for breast cancer and number of induced abortions,” meaning the risk climbed with a higher number of previous abortions.

For premenopausal women who have had abortions, the numbers were relatively small, and the observed 16% risk elevation was not statistically significant. However, for those with three or more abortions, the risk climbed to a statistically significant 1.55-fold elevation.

“The results have revealed that induced abortion was related to increased risk of breast caner. Premenopausal women who had =3 times of induced abortion were at increased crude odds ratio (OR) (2.41, 95%CI: 1.09-5.42) and adjusted-OR (1.55, 95%CI: 1.15-5.68),” the study indicates. “Postmenopausal women with a previous induced abortion were at increased crude OR (2.04, 95%CI: 1.48-2.81) and adjusted-OR (1.82, 95%CI: 1.30-2.54), and there was a significant increase trend in OR with number of induced abortions (p for trend: 0.0001).”

 To read this new study, please visit:


9th Breast Cancer Research Paper (Year 2013) Linking Abortion To Breast Cancer:

A study published in the Indian Journal of Community Medicine (May, 2013) found a 6.38-fold greater risk of breast cancer among women with histories of induced abortion.  The study, led by Ramachandra Kamath, MD (Department of Public Health, Manipal University), found induced abortion was the most important risk factor.

“With only 94 cases and 94 controls, the study was way too small for a significant risk of the order of 1.5-fold to even show up,” explained Professor Joel Brind (Baruch College, City University of New York). “Yet induced abortion did show up as the strongest risk factor (and right on the border of statistical significance) because the risk increase was so high at 6.38-fold.”

 The authors found a non-statistically significant 1.76-fold risk increase among women with first births after age 30.“Medical texts acknowledge delayed first full term pregnancy is a risk factor for breast cancer. It’s indisputable that abortion contributes to delayed first full term pregnancies; and in some cases, women remain childless forever, which is also an accepted risk factor.

Kamath’s group observed that India has the “largest estimated number of breast cancer deaths worldwide,” and breast cancer rates are on the rise there.

Brind said he found it “troubling that the abortion-breast cancer link is now showing up big time in the world’s most populous countries where breast cancer used to be rare. That means millions upon millions of women will die from this deadly after-effect of abortion. Consider that between India and China, we’re talking about over a billion women. If only 1% of them get breast cancer due to abortion, that’s still 10 million women, of whom at least 2 or 3 million will die from it!”

Their deaths can be laid at the doorstep of the U.S. National Cancer Institute whose leaders have covered up the ABC link for twenty years since the study, Daling et al. 1994, became available.

Kamath’s team noted that a 2006 Indian study, led by Manjusha Rai, had found a “significant association between abortion and breast cancer.”

To read this study, please visit;year=2013;volume=38;issue=2;spage=95;epage=99;aulast=Kamath

The results clearly state, ""Age at menarche, age at first child birth and abortion reported significant risk for breast cancer."



Here is the e-mail to a breast cancer surgeon, Dr. Angela Lanfranchi in New Jersey, who recognizes the abortion-breast-cancer link: [email protected] 

According to information from Dr. Lanfranchi's website (, the 6 criteria have been met to establish that induced abortion is a cause of breast cancer. 

For more information, visit:

Dr. Joel Brind, a Yale University graduate who is a professor of biology and endocrinology at Baruch College, also supports abortion-breast-cancer link..

Dr. Chris Kahlenborn is an American medical doctor, specializing in internal medicine at Altoona Hospital / Bon Secours Hospital in Pennsylvania, U.S.A.  He has authored a book on the abortion-breast-cancer link.   Dr. Kahlenborn graduated from Penn State Medical University in 1988 and has been doing research on the effects of oral contraceptives on breast cancer for well over ten years.  In June 2000 he testified on the topic of breast cancer before the Federal Drug Administration (FDA) in Washington D.C. 

His most recent publication, published in the Mayo Clinic Proceedings in October, 2006 is called “Oral Contraceptive use as a risk factor for premenopausal breast cancer.”  For more info, visit

Dr. Gerard Nadal also supports the abortion breast cancer link.  He holds a Master of Science in Cellular & Molecular Biology & a Master of Philosophy in Biology, and a PhD in Molecular Microbiology from Saint John's University, New York City.  Dr. Nadal can be reached at [email protected]

The U.S. National Cancer Institute (NCI) website mentions that it hosted a breast cancer workshop in 2003 to explore the abortion breast cancer issue.  It is also mentions that the workshop resulted in a denial of the abortion breast cancer link.  Unfortunately, individuals who supported the abortion breast cancer link were either not invited to the workshop or were not allowed to speak if they were in attendance. 

Of the above mentioned individuals, only Dr. Brind was in attendance at this breast cancer workshop but he was not allowed to present his statistical analysis of data to support the abortion breast cancer link.  He did manage to file a dissenting opinion at the NCI workshop. 

Dr. Janet Daling from Fred Hutchinson Cancer Research who has studied the abortion breast cancer link extensively & supports the abortion breast cancer link was in attendance but was instructed to present on an entirely different topic by Dr. Louise Brinton (Chief Hormonal & Reproductive Epidemiologist at the U.S. National Cancer Institute) & was not given the opportunity to present research to support the link. 

To further read how the National Cancer Institute deliberately orchestrated the breast cancer workshop to suppress the discussion of research linking induced abortion to elevated breast cancer risk, please visit

Despite 5 new breast cancer research studies linking induced abortion to elevated breast cancer risk, the federally funded U.S. National Cancer Institute (NCI) has been slow to include this information on their website & only mentions discussions from a 7 year old NCI breast cancer workshop from 2003. 

U.S. National Cancer Institute is reluctant to include the new findings on their website due to political pressures by pro-choice politicians who fear the wide public broadcast of the new findings in the media will affect the legality of abortion. 

American Cancer Society was also pressured to remove induced abortion as a breast cancer risk factor from their website & their current website completely lacks information & even acknowledgment of the new year 2009 to 2010 breast cancer research linking abortion to breast cancer.

In case you want to contact Dr. Brinton to ask her about why the National Cancer Institute has not updated their website to include new breast cancer research linking abortion to breast cancer: [email protected]

Specifically, you might want to ask Dr. Louise Brinton why the National Cancer Institute website contains information that is in complete contradiction to her own research (ie: her own research with Dr. Brinton's name & NCI's name on the front page was published in April 2009 clearly stating that abortion is linked to elevated breast cancer risk with a 40% increased risk associated with abortion; however, her organization's website (NCI) completely denies the link exists). 



You may also be interested in reading the following book:
Title of book "Breast Cancer: Its Link to Abortion and the Birth Control Pill"

Author: Chris Kahlenborn, M.D. (Internal Medicine- Altoona Hospital in Altoona, Penn )

Book is available online at Amazon at

      ISBN-10: 0966977734
      ISBN-13: 978-0966977738

Dr. Chris Kahlenborn has his own website:

To read more on how oral contraceptives act as a carcinogenic steroid, visit

Here's a link to a year 2012 article titled, "Study Finds a Link Between Injectable Contraceptive Use and Increased Risk of Breast Cancer in Young Women"  Here's a link to the study
[from 1 Nov 2010, ]



10th Breast Cancer Research (Year 2014) Linking Abortion To Breast Cancer:

New Study from India Confirms Evidence of Abortion/Breast Cancer Link

Growing evidence confirms that abortions take more than an emotional toll on those who obtain them. A new study, completed in January and released at the end of April, finds that women who have had abortions are 180 percent more likely to develop breast cancer, confirming evidence found in a number of similar studies around the world.

The study, led by Dr. Unmesh Takalkar, a consultant surgeon and chief medical director at United CIIGMA Hospital in India and an endoscopic surgeon and fellow at Johns Hopkins, focused on 220 women in Aurangabad, India, and found that the odds of developing breast cancer increased with the number of abortions a woman had had.

"We observed strong positive association of positive family history in first degree relatives … number of abortions … and past history of benign breast disease … in cases of breast cancer at our center," wrote Dr. Takalkar.

The Johns Hopkins study corroborates findings from various other studies, such as one published earlier this year in the Indian Journal of Cancer that showed abortion had led to a 626-percent increase in risk for breast cancer.

And the risk does not lie with abortions alone. Takalkar referenced another study that found an increase between breast cancer rates and the use of oral contraceptives.

Dr. Joel Brind, professor at Baruch College at the City University of New York, puts these figures into perspective:

"There are over a billion women in India and China alone. If half of them have an abortion and the lifetime risk of breast cancer goes up a modest 2 percent, that comes out to 10 million women."

Still, despite the evidence demonstrating a link between breast cancer and abortions, pro-abortion advocates continue to ignore the risks and tout their rhetoric regarding a woman's "right to choose."

Following a significant study in China that showed a 44-percent overall increase in breast cancer among women who had had abortions, a predictable pro-abortion backlash took place online.

One particular advocate, Abby Ohlheiser, who often writes for, attempted to debunk the study on In it, she referred to the "recall bias" which asserts that healthy women are more likely to deny prior abortions in their study questionnaires than those who have developed breast cancer, as a result of the social stigma attached to abortions. She also claimed that the perceived increase in breast cancer rates is simply a result of "more sophisticated early detection methods that coincidentally gained traction during the post Roe v. Wade period."

Dr. Brind posted a detailed response to Ohlheiser's article:

Abortion and breast cancer: The problem isn’t faulty science, rather politicized science and faulty journalism.

First off, Abby Ohlheiser — not a scientist herself — addresses the issue "from a standpoint of scientific consensus." Consensus — i.e., majority rule — is entirely a political concept. And in fact, significant scientific discoveries almost always go against the scientific consensus (which even scientists call the "prevailing dogma") of the day.

When the subject has anything to do with abortion — or more specifically, any challenge to the prevailing dogma of "safe abortion" — you can safely bet that the majority of establishment figures in universities, medical societies, voluntary organizations, and government health ministries will side with the "safe abortion" crowd. So to get to the heart of such a politically loaded scientific question, one needs to check out primary sources.

If one really examines the so-called "high quality studies" that do not show the abortion-breast cancer link (ABC link), and also the critiques I and my colleagues have published in the same, peer-reviewed journals over the years (since 1996), one can appreciate the scandalous abuse of science that has permeated the most prestigious journals in recent years.

Fortunately, over the last 5 years, lots of new studies documenting the reality of the ABC link have appeared from around the world in international, open-access journals, largely from Asia. It is indeed ironic that many of these studies reporting a significant ABC link have been conducted in countries such as Iran and mainland China, whereas the Western journals have largely presented a great wall of denial.

Brind concluded by referencing a prestigious study published in the Journal of the National Cancer Institute by a team from the United States and China in which the conclusion stated that China was "on the cusp of a breast cancer epidemic." That article did not explicitly name abortion as the culprit, but rather cited "shifting reproductive trends." Brind notes, "This is really code for China's 'One Child Policy' with abortion (and not as a matter of choice) its centerpiece."

Brind observes that despite assertions by pro-abortion advocates that they are fighting for women's rights, they are in fact violating their own alleged agenda. Writing for the National Right to Life Committee, Brind concluded that since the majority of abortions in Asia are of females, "one might start to reconsider just who is waging the real war on women."

Karen Malec, president of the Coalition on Abortion/Breast Cancer, articulates similar sentiments about organizations in the United States who attempt to sweep the link between abortion and breast cancer under the rug.

"The failure of the leaders of U.S. cancer ‘charities’ and leftist women’s groups to blow the whistle about the [abortion-breast cancer] link shows what frauds they are," said Malec. She said regardess of the fact that they present their agenda as a call for improving "women's health" through "safe abortion," activists promoting abortion around the world would "rather see millions die of breast cancer before they’d admit abortion raises risk."

Malec adds, "They're cooperating in the Obama administration's war on women."

Malec also references a number of other studies conducted in India, Bangladesh, and Sri Lanka that come to the same conclusion.

Studies also indicate that there are other significant long-term physical impacts of abortion on women, including major issues in future pregnancies and greater risk of other cancers such as cervical, ovarian, and liver.

Likewise, a research team in New Zealand , after analyzing data from a 25-year period, found that abortion in young women is associated with increased risks of major depression, anxiety disorder, suicidal behaviors, and substance dependence.
[05 May 2014, Raven Clabough, ]