Breastfeeding for Cancer Prevention

Posted on by DCPC
Mother breastfeeding son
One of the many benefits of breastfeeding is that it can lower a mother’s risk of some cancers.

Erica H. Anstey, PhD, MA, CLC
CDC’s Division of Nutrition, Physical Activity, and Obesity
Ginny Kincaid, MPH
CDC’s Division of Cancer Prevention and Control

Did you know that breastfeeding can lower a mother’s risk for some cancers?

We are going to talk about the connection between breastfeeding and cancer prevention in honor of World Breastfeeding Week, an annual celebration the first week of August that recognizes global action to support women in their efforts to breastfeed. This week celebrates breastfeeding as an investment in health.

Most people know there are many benefits to breastfeeding. We’ve probably all heard that it’s the best source of nutrition for most babies and provides many health benefits for infants. The health benefits for women who breastfeed, however, are less commonly known. In addition to lowering a mother’s risk for type 2 diabetes and high blood pressure, breastfeeding can also lower a mother’s risk of breast and ovarian cancers. A recent study found that only about 1 in 4 people think that a woman is less likely to develop breast cancer later in life if she breastfeeds. It’s important to know that breastfeeding helps not only the baby’s health but also the mother’s health too!

What is the current recommendation for breastfeeding?

The American Academy of Pediatrics (AAP) recommends that infants be exclusively breastfed for about the first 6 months of life with continued breastfeeding after the introduction of solid foods for 1 year or longer.

How many women in the United States breastfeed?

Although most infants receive some breast milk, most are not exclusively breastfed or continue to breastfeed as long as recommended. Four out of 5 infants start out breastfeeding, but only 1 in 4 infants are still exclusively breastfed at 6 months. There are also major disparities, or differences among different groups, for breastfeeding. For example, black infants are 15% less likely to have ever been breastfed than white infants. These disparities are improving some.

What are some of the benefits of breastfeeding for infants and mothers?

Breastfeeding is important for overall health. Infants that are breastfed have a lower risk of asthma, obesity, ear and respiratory infections, sudden infant death syndrome, and gastrointestinal infections such as diarrhea. Breastfeeding also lowers a mother’s risk of high blood pressure, type 2 diabetes, and breast and ovarian cancers.

How does breastfeeding lower the risk of breast and ovarian cancers?

One reason may be that when a woman is breastfeeding, she experiences hormonal changes that may delay the return of her menstrual periods. This reduces her lifetime exposure to hormones such as estrogen, which are linked to an increased risk of breast and ovarian cancers.

What is CDC doing to increase breastfeeding rates in the United States?

CDC supports breastfeeding by tracking how long babies are breastfed, promoting best practices in health care settings, and supporting mothers at work and in communities. Learn more about these efforts to increase breastfeeding across the nation.


Why Does Breastfeeding Lower Your Risk of Breast Cancer?

Posted on by DCPC

10 comments on “Breastfeeding for Cancer Prevention”

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    I breastfed all four of my sons and was diagnosed with Stage 1A breast cancer Dec 10, 2019. The cancer was removed by lumpectomy, radiation completed March 25, 2020 and will be on hormones for 5 years. I was a Cancer Registrar for 11 years, so I knew what to expect and understood more than most people. So thankful I didn’t have to have chemo and it was caught SO early.

    Omg I’m sorry to hear. If you don’t mind me asking, how long did you breastfeed each of your sons? I’m breastfeeding my 4th child now so this hits home.

    Given the many health risks to mother and baby of using artificial baby milk instead of breastfeeding, I am very disappointed that this article normalises bottle feeding. No one talks about the advantages of not smoking, as if smoking were normal behaviour. We talk about risks of smoking. Likewise we should be referring to the risks of artificial baby milk, not the advantages of breastfeeding.
    Sadly many breastfeeding problems are attributable not to mothers’ incompetence or lack of dedication to their children, but to medical practises, including over heated and brightly lit labour wards, delivery tables being too dangerous for babies to crawl up to self attach and then the drastic restriction of access to the breast, particularly at night, advocated by paediatricians. The apgar test should be abandoned for breast fed infants in favour of observing the baby crawling to the breast and self attaching, whilst still retaining the life belt of the uncut umbilical cord. Ramming a baby’s head onto the breast is as damaging as forced intercourse, both mentally and physically and should also be abandoned by the medical profession.

    I agree. Perspective is everything. Breast is normal. Artificial feeding can be very beneficial when needed. (I had chronic low supply and had to supplement). But using formula does actually carry risk. This fact is largely hidden. Introduction of infant formula increases a child’s risk for various diseases, such as type 1 diabetes mellitus and obesity.
    Again, I am not anti-formula. My daughter would not have survived without it. But just like I wouldn’t give my child pediasure instead of normal food unless medically necessary, formula should be used when needed, not as a default.

    I’m a public health professional here in the great state of SC. My wife had our first little one about 10 days ago and because it took a minute for her milk to come in she has been exclusively breastfed for about a week now. I am in awe of my wife who is way cooler than Captain Marvel and Wonder Woman combined. She has been so resilient through blood sweat and tears (and cabbage leaves) she has persevered. We know it is so good for mom and baby, but I never could have imagined the positive effect on our marriage and my fatherhood. Seeing my wife and baby working so hard to learn a new thing to both of them is absolutely amazing and truly inspires me to want to be better and work harder for them.

    Breastfeeding is normal and natural, the human norm. Therefore it doesn’t “lower the risk” it Is THE NORM.
    This article should be rewritten to say “Bottle feeding increases the risk of breast cancer in the mother.”

    I had my firstborn daughter in 1981, my son in 1982, and my youngest daughter in 1985. I breastfed all three of them, and I received an extraordinary amount of criticism as a result. I was accused of flashing my breast and behaving inappropriately in public. So I spent a lot of time in the women’s bathroom. I’m a Black woman, and the people who criticized me the most were other Black people! My doctors said that breast milk was the only food my babies would need for the first years of their lives. When I told people that, they didn’t believe me. They even bought jars of babies food because, “That baby needs real food to grow up healthy and strong. So I became a non conformist who wouldn’t listen to them. But the bond I have with my children is still very strong. They are well educated and pursuing their careers!

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Page last reviewed: Tuesday, June 23, 2020
Page last updated: Tuesday, June 23, 2020