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    Understanding Periods

    Having a period is a normal, healthy part of becoming and being a woman. A period is the result of a cycle that takes place inside a woman's body. This menstrual cycle makes it possible for women to have babies. The cycle begins with the first day of bleeding. In the middle of the cycle, ovulation occurs. This is when an egg is released and begins its journey from the ovary to the uterus.

    Gender words are used here to talk about anatomy and health risk. Please use this information in a way that works best for you and your provider as you talk about your care.

    Front view of partly sectioned uterus, fallopian tubes, and ovaries.

    An egg is released

    During each cycle, one egg grows and is released from an ovary. It finds its way to the fallopian tube. (If the egg and a man’s sperm meet, a woman may become pregnant.)

    The egg travels through a tube

    The egg moves through the fallopian tube toward the uterus. 

    The lining thickens

    The lining of the uterus grows thicker. This lining is made up of blood, tissue, and fluid. (The lining will nourish a growing baby during pregnancy.)

    The egg and lining are shed

    About once a month, if pregnancy does not occur, the egg and the lining of the uterus are shed through the vagina. This is called a period. (A period does not happen during pregnancy.)

    Online Medical Reviewer: Donna Freeborn PhD CNM FNP
    Online Medical Reviewer: Heather M Trevino BSN RNC
    Online Medical Reviewer: Howard Goodman MD
    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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