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Menu: Pregnancy and Breast Cancer

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Pregnancy and Breast Cancer

FAQs

  • Can I get breast cancer during pregnancy?
  • What are treatment options if I am diagnosed during pregnancy?
  • What questions should I ask?
  • Will breast cancer during pregnancy affect my unborn child?
  • Can I get pregnant after breast cancer, and when?
  • Is breastfeeding possible after breast cancer?

Can I get breast cancer during pregnancy?

Breast cancer is the most common cancer in pregnant and postpartum women, occurring in about 1 in 3,000 pregnancies. The detection of a lump may be hindered by the natural tenderness and engorgement of the breasts of pregnant and lactating women. It is important to know what is normal for your breasts and to be aware of any changes in their look or feel and to have a clinical breast exam as part of routine doctor's visits if you are pregnant or lactating.

What are treatment options if I am diagnosed during pregnancy?

Effective treatment, including surgery and chemotherapy, can be administered during certain times of pregnancy. Treatment will be decided based on the stage of fetal development and the stage of cancer. The use of radiation therapy during the first and second trimester of pregnancy is not recommended due to the inability to shield the baby from the radiation. For women in early stages of cancer, treatment usually consists of a mastectomy followed by chemotherapy in the second trimester. Chemotherapy given after the first trimester does not put the fetus at any greater risk, although low birth weight is sometimes a concern. Women at more advanced stages of cancer have much more difficult choices laid before them as to whether they should delay treatment until after birth or start a less aggressive form of chemotherapy, which may not be effective to fight their cancer. It is important for women facing these choices to discuss possible implications with physicians and specialists, as well as to get support from their friends, family and partners.

What questions should I ask?

  • What are my treatment options for my stage of pregnancy/stage of cancer?
  • Is there a risk to my baby because of these treatments?
  • Can I delay treatment until after the birth? Why or why not?
  • What is the likelihood that my cancer will advance with delayed treatment?
  • Can I breastfeed my baby?
  • Can you recommend a genetic counselor?

You may also want to visit the following websites for more information:

  • NCI Pregnancy and Breast Cancer
  • Fertile Hope

Will breast cancer during pregnancy affect my unborn child?

There is no evidence that breast cancer will affect a baby's development nor that cancer can be passed on to a baby in the womb. If you are diagnosed during pregnancy, you may want to consider participating in a cancer registry which collects information about the diagnosis and treatment of cancer in pregnant women. Dr. Elyce Cardonick, a Maternal Fetal Medicine physician at Cooper University Hospital, collects information about the diagnosis, and treatment of cancer in pregnant women. This information (kept strictly confidential) will help study the effects of a newly diagnosed cancer and treatment, if any, on a concurrent pregnancy. Following the development and behavior of the children after delivery is a long term goal as well.

Can I get pregnant after breast cancer, and when?

Some women can and do become pregnant after breast cancer, and recent studies suggest that pregnancy after breast cancer should not increase your risk of recurrence. However, you should consult your doctor before attempting to get pregnant. It is important to realize that certain cancer treatments can affect one's ability to bear children, and careful thought and planning is necessary to preserve fertility before and during treatment.

There are some clinical issues to consider when thinking about pregnancy after breast cancer:

  • Impact of chemotherapy on ovaries – At birth, every woman is born with a full complement of eggs in her ovaries to last a lifetime, expending one each month with her menstrual cycle. However, chemotherapy can damage ovaries in a variety of ways. Even if you didn't experience menopause, chemotherapy may kill some eggs completely, or may have damaged your remaining eggs, so they may be incapable of fertilization or may cause genetic defects. Consult a fertility specialist to determine the quality of your eggs and whether you have a chance at a successful pregnancy.

  • Year of survival – While there is some debate, some oncologists recommend that you wait until you are past your five-year survival mark to consider pregnancy due to the impact it may have on your body. Others recommend waiting only two years.

  • Extended treatment – Some women require additional hormonal therapy after treatment, such as 5-10 years of Tamoxifen, which can further delay pregnancy. Speak with your doctor about the possibility of taking a break from Tamoxifen to have children.

Is breastfeeding possible after breast cancer?

If you have had a mastectomy or lumpectomy with radiation you can still breastfeed from the unaffected breast. In fact, your remaining breast may produce more milk to compensate. If you are diagnosed during or immediately following pregnancy, breastfeeding can be harmful to babies as chemicals from drug treatments can pass through the milk ducts.

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