Breastfeeding with breast cancer
Although it is not common to be diagnosed with breast cancer during or
shortly after pregnancy, it does happen. We want to help you understand the
benefits and risks of making a breastfeeding decision after being diagnosed
with breast cancer (BR-CA).
Your decision largely depends on the type of treatment you are
receiving. Some drugs/cancer drugs may be present in breast milk and make
breastfeeding a risky activity.
Frequently asked questions
If I received treatment during pregnancy, how long should I take it out
of my body before breastfeeding?
It depends on the type of treatment.
If I want to breastfeed, does that mean I should delay treatment?
Although breastfeeding is becoming increasingly important, this does not
mean that it is worth risking your life and well-being. Look for therapies,
formulas, and even breast milk donations.
If I have a unilateral lumpectomy or mastectomy, can I breastfeed on one breast?
Usually, yes! It's safe and correct. There are a few tricks to make it
more convenient. Radiation therapy is usually required after a lumpectomy, so
if breastfeeding is planned, a mastectomy may be suggested if you are not
interested in breast-conserving surgery.
What cancer drugs can pass into my breast milk and are not safe for my baby?
Large amounts can be present in breast milk, which creates a problem for
what your baby swallows. The information below should not be taken as medical
advice, but is intended to guide your conversations with your doctor.
Will cancer treatment reduce the amount of milk I produce?
It's very possible. Again, this depends on a number of factors.
Are there "safe" treatments for breastfeeding?
Other than possible surgery (mastectomy or biopsy), there are no other
suggested treatments that will allow you to continue breastfeeding. Some
doctors recommend stopping breastfeeding before surgery to prevent infection
and reduce blood flow and swelling of the breast.
If I haven't had a tumor removed yet, is it safe to offer breast milk from that breast?
A lot depends on your doctor's prescription. He or she will consider whether the cancerous part of the breast can produce milk and when it needs to be removed.