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    Do Asymmetric or Uneven Breasts Come From Breastfeeding?

    Breast tissue extends up toward your armpit. So, as breast tissue swells with milk and then shrinks again after breastfeeding, the contours of your bust line may change.

    Many women have uneven breasts before becoming pregnant as well as after breastfeeding. It's possible for one breast to return to its pre-pregnancy size while the other stays larger, droops, or flattens more. Some women end up with one breast a full cup size smaller or larger than the other after breastfeeding and simply learn to love the body that nourished their babies -- no matter what its shape.

    Should I Be Screened for Breast Problems if I'm Breastfeeding?

    Most breast problems after breastfeeding are cosmetic changes, not real medical concerns. But it's wise to stay up to date on your regular breast screening tests to ensure your breast health.

    • Breast self-exams are a simple way to keep tabs on your breast health and changes. Examine your breasts once a month, even while breastfeeding. It's especially important to examine your breasts in the months after you stop breastfeeding, as the shape and size of your breasts change. Report any lumps or unusual nipple discharge to your doctor. Some lumps can even extend to the armpit. Most lumps are benign, meaning they are not cancer. But they still should be checked for breast cancer.
    • A breast exam by your doctor can evaluate whether a breast problem after breastfeeding needs medical attention. Have your doctor perform a breast exam once a year or any time you notice unusual breast changes after breastfeeding.
    • A mammogram(breast X-ray) can diagnose a lump too small for you to feel. If you have a breast problem after breastfeeding, your doctor may advise a mammogram right away, rather than waiting for your regularly scheduled yearly or biannual mammogram. It's also safe to have a mammogram while breastfeeding if you need one. It won't affect your milk or your baby's health.

    Call your doctor if you have any of these breast problems:

    • A lump in your breast
    • A red, sore lump that may feel hot to the touch, which could be a plugged milk duct
    • Dimpling or puckering of your breast
    • Fever or flu symptoms, which could indicate a breast infection (called mastitis)
    • Nipple retraction (the nipple turned inward)
    • Painful breasts (more than the discomfort related to breastfeeding)
    • Rash on your breast
    • Unusual nipple discharge or a bleeding nipple

    A positive note: Breastfeeding lowers your risk of breast cancer. Women who have never breastfed have a slightly higher risk.