The Downside of Mammograms – What Your Doctor May Not Be Telling You

peter-goetzchePeter Gotzsche, M.D., author of Mammography Screening: Truth, Lies and Controversy, states, “Screening saves probably one life for every 2,000 women who go for a mammogram. But it harms 10 others. Cancerous cells that will go away or never progress to disease in the woman’s lifetime are excised with surgery and sometimes (six times in 10) she will lose a breast. Treatments with radiotherapy and drugs, as well as the surgery itself, all have a heavy mental and physical cost. I believe the time has come to realize that breast cancer screening programs can no longer be justified.”  

Mammograms are the number one source of malpractice lawsuits against radiologists and this creates an incentive to over-diagnose breast cancer.    Dr. Fred Vernacchia, a radiologist and medical director at the San Luis Diagnostic Center in San Luis Obispo, The trouble with mammograms, LA Times

More Breast Cancer Experts are Now Speaking Out AGAINST Mammography

Michael Baum, an eminent professor of surgery at the University College, London, was involved in setting up the breast cancer screening program in the UK 20 years ago. Now he is an outspoken critic against mammography. He states, “I have watched with increasing alarm as evidence has accumulated that suggests the initial estimates of benefit were exaggerated and the initial estimate of harm was, frankly, ignored. What has gone wrong is that we would never have predicted how many of these cancers detected at screening lack the potential to threaten the woman’s life.”

Eric Topol, Medscape Editor-in-Chief and practicing cardiologist at Scripps in California, recently wrote an article titled, “Time to End Routine Mammography.” He says, All of the data now available point to significant net harm—far more risk than benefit— for routine mammography. If this were a drug, the US Food and Drug Administration (FDA) would never approve it. Last year, the Swiss Medical Board, after reviewing all of the data, recommended abolishing mammography.” Time to End Routine Mammography, Medscape

“For too long, we’ve taken a brain-dead approach that says the best test is the one that finds the most cancers – but that’s wrong.”  – Dr. H. Gilbert Welch of the Dartmouth Institute for Health Policy, The trouble with mammograms, LA Times

“The goal of routine breast cancer screening is to prevent women from dying of breast cancer. Yet studies have shown that the popular claim ‘early detection saves lives’ is not actually true.” Breast Cancer Action, Should I Get A Mammogram? Understanding the Harms and Benefits of Routine Breast Cancer Screening

The Studies, the Facts, the Numbers, the Truth:

An unbiased review of SEVEN trials involving 600,000 women ages 39 to 74 concluded:

  • Screening did not reduce breast cancer 
  • For every 2000 women screened throughout 10 years, one will have her life prolonged and 10 healthy women, who would not have been diagnosed if there had not been screening, will be treated unnecessarily.
  • More than 200 (out of 2000) women will experience important psychological distress for many months because of false positive findings.”
  • A large 25-year study of 90,000 Canadian women aged 40 to 59 found no benefit for women who were randomly assigned to have mammograms:
  • The death rate from breast cancer was the same in both groups.
  • 22 percent of women in the mammography group were over-diagnosed resulting in 1 in 424 women receiving unnecessary cancer treatment, including surgery, chemotherapy and radiation.”

Another Very Serious Problem with Mammograms – False Negatives

A“false negative” is when a mammogram appears normal and cancer is actually present. According to Are You Dense?,  1 in 5 women (20 percent) will feel reassured they do not have breast cancer, when in fact they do. Breast density is one of the strongest predictors of the failure of mammographic screening to detect cancer. Two thirds of pre-menopausal and 1/4 of post-menopausal women have dense breast tissue. Please see Happy Gram the movie and ask for your past mammogram reports to see if you have dense breasts.

Even Worse, Could Mammograms Actually Induce and Promote Cancer? 

Dr. Samuel Epstein, chairman of the Cancer Prevention Coalition, and author of 270 scientific articles and 15 books on the causes and prevention of cancer states: “Radiation from routine mammography poses significant cumulative risks of initiating and promoting breast cancer. Contrary to conventional assurances that radiation exposure from mammography is trivial – and similar to that from a chest X-ray or spending one week in Denver, the routine practice of taking four films for each breast results in some 1,000-fold greater exposure. Premenopausal women undergoing annual screening over a ten-year period have an increased breast cancer risk by 1 percent per year resulting in a cumulative 10 percent increased risk over ten years.” – Dangers and Unreliability of Mammography

What other screening options are there?

DCIS Redefined summarizes studies and provides information about thermography, ultrasound and MRI in comparison to mammography for screening or monitoring breast health. See Imaging and Monitoring. More on Automated Whole Breast Ultrasound coming soon! Read about Dr. Kevin Kelley, inventor of the SonoCine Automated Whole Breast Ultrasound here.

Is there anything else I can do to lower my risk of breast cancer?

Yes! Please check out The Proactive Breast Health Club to learn natural ways to reduce risk of breast cancer. It’s free to sign up to receive periodic articles.

More info and links to articles on Mammography here.

About Donna Pinto

I am originally from New Jersey and moved to Los Angeles with my family at age 12. After graduating from San Diego State University with a BA in Journalism, I had a short-stint in magazine advertising sales before landing my "dream job" with Club Med. For two years I worked at resorts in Mexico, The Bahamas, The Dominican Republic and Colorado. My husband Glenn & I met in Ixtapa, Mexico and we embarked on a two year honeymoon around the world. This was also a research project for a book we wrote called "When The Travel Bug Bites: Creative Ways to Earn, Save and Stay Abroad." I am also the author of a quote book for new graduates -- "Cheatnotes on Life: Lessons From The Classroom of Life." In 1997, we settled in San Diego and I was blessed to work part-time from home for non-profit organizations while raising our two boys. In 2010, a DCIS diagnosis changed my life. DCIS 411 is the culmination of my on-going journey and discoveries.
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10 Responses to The Downside of Mammograms – What Your Doctor May Not Be Telling You

  1. mochimom2013 says:

    Thank you Donna! for this latest article! You are empowering all of us to seek other options besides mammograms!!! You continue to inspire us! Love & Blessings, Kat??

    Sent from my iPhone


  2. Laurel says:

    My question is if you don’t get a mammogram, how would breast cancer be found?


  3. judyarbic says:

    I personally do not want to get mamograms. Why aren’t men told that they have to? They do get breast cancer , fewer but still a possibility? I have Rhumatoid arthritis and I’ve had so many x-rays, cat scans etc. I should lite up at night! My husband on the other hand has never had any and they didn’t even give him a chest xray before his hip replacement surgery? I asked his dr why and he said..too many xrays arent good for you! I told him that my mother had to have a chest xray before she had any operation and that my husband has never had any? This leaves me to believe that drs care more about mens health then womens. Men don’t have to get mamograms so why do women? They can and do get breast cancer?! I was ordered by my dr. to get one but I refuse. He needs to back off. It’s my body and I’ll decide what tests that I will take not him.


    • A. G. says:

      I am a woman, age 71 and have had a very few mamograms in my life. They were performed by men mostly and were always negative. Frankly I have always been very skeptical of that testing. That is why I did not have it done much. I think that any man who would go into that line of work is apt to be abnormal psychologically and have inappropriate motivation . I don’t want to subject myself to such a person. If the test is legit, why are there not more efforts to get women into the field as testers so that women can feel comfortable being tested? It does NOT seem like a mentally healthy/well meaning occupation for a man to choose, and yet men seem to predominate there.


  4. Laurel says:

    This article is from 2016. What is current thought from medical community?


  5. Donna Pinto says:

    Thought from the medical community is mostly biased towards starting mammograms at 40 and having them annually for eternity. This is in opposition to the 2016 USPSTF recommendations:
    More info on potential screening harms here:


  6. Joyanne Barnett says:

    These are very recent studies. I would like recent studies please


  7. Ragapple says:

    I have torn rotator cuff from abusive mamo -I will be in pain for rest of my life, when I called to complain they said that is what is supposed to happen. Come back in 6 months we have to keep eye on that normal glandular tissue so you be be failed and abused every 6 months forever- I considered suicide. NEVER AGAIN


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