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    Breast Health: Normal Breast Changes

    Breasts change over time. Their size and texture may vary with shifts in your body weight. Breasts also change as you go through different stages of your life.

    New mother and grandmother holding newborn baby daughter.

    Puberty

    Breasts start growing before a girl begins to menstruate. This happens in response to hormonal changes. Each girl’s breasts mature at their own pace.

    Menstrual cycle

    Most women’s breasts change during the menstrual cycle. Before each period, mammary glands may swell and become tender or lumpy. After the period ends, swelling, tenderness, and lumpiness are likely to decrease. Women who take birth control pills may find that their breasts become firmer and larger.

    Pregnancy and breastfeeding

    During pregnancy, mammary glands enlarge to make milk. This makes breasts larger and firmer. When breastfeeding ends, breasts return to their original size and may feel less firm.

    Menopause

    During and after menopause, ducts and mammary glands shrink. They’re replaced by fatty tissue, making breasts feel less lumpy. Women who take hormone therapy may have fewer breast changes related to menopause.

    Online Medical Reviewer: Donna Freeborn PhD CNM FNP
    Online Medical Reviewer: Heather M Trevino BSN RNC
    Online Medical Reviewer: Irina Burd MD PhD
    Date Last Reviewed: 12/1/2022
    © 2000-2024 The StayWell Company, LLC. All rights reserved. This information is not intended as a substitute for professional medical care. Always follow your healthcare professional's instructions.
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    Southern New Mexico
    Surgery Center

    2301 Indian Wells Rd. Suite B
    Alamogordo, NM 88310
    www.snmsc.org

    Phone: 575.437.0890
    Fax: 575.437.0905
    Email: info@snmsc.org

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