How does pregnancy protect against breast cancer?

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What role does pregnancy play in breast cancer risk?

During pregnancy, breast cells grow rapidly. If there is any genetic damage in the breast cells, it gets copied as the cells grow. This increased genetic damage in the cells can lead to breast cancer. And, the chance of having such genetic damage goes up with age.

Is breast cancer more likely after pregnancy?

However, researchers say the overall risk remains low and the odds even out after 20 years. Women who have recently given birth may have an increased risk of developing breast cancer.

Which type of breast cancer is most commonly seen in pregnancy?

The treatment and prognosis of pregnancy-associated breast cancer is discussed separately. (See “Gestational breast cancer: Treatment”.) Breast cancer is one of the most common cancers in nonpregnant and pregnant women [1].

Can pregnancy hormones cause breast cancer?

The risk of developing breast cancer rises with a woman’s age. Being pregnant doesn’t cause breast cancer, but if you already have some breast cancer cells, the hormonal changes of pregnancy may cause them to grow.

Can pregnancy speed up cancer?

Pregnancy doesn’t raise your odds for cancer. And it doesn’t usually make cancer grow faster. Most women who have cancer, or have survived it, can give birth to healthy babies. But some cancer treatments aren’t safe for your baby.

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Is breast cancer common during breastfeeding?

While it’s very rare, a small percentage of women do develop breast cancer while they are breastfeeding. Lactating breasts are often lumpy and bumpy due to normal breast fullness, and occasional plugged ducts.

Does breastfeeding reduce the risk of breast cancer?

You probably know that breastfeeding can give your baby a healthy start. But that’s not the only health benefit. It also can lower your breast cancer risk. “Research shows mothers who breastfeed lower their risk of pre- and post-menopausal breast cancer.

What happens if a woman with cancer gets pregnant?

While cancer during pregnancy is rare, it can and does happen to some people. Often, a pregnant person with cancer has the same outlook as a person with cancer who isn’t pregnant. Typically, being pregnant while having cancer shouldn’t affect your overall outlook.

Is breast cancer common during pregnancy?

Breast cancer affects approximately 1 in 3000 pregnant women and is the second most common malignancy affecting pregnancy.