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  1. Menstruation - Wikipedia

    Menstruation (also known as a period, among other colloquial terms) is the regular discharge of blood and mucosal tissue from the inner lining of the uterus through the vagina. [1] The …

  2. PERIOD Definition & Meaning - Merriam-Webster

    period, epoch, era, age mean a division of time. period may designate an extent of time of any length. epoch applies to a period begun or set off by some significant or striking quality, …

  3. What is Menstruation? | Get Facts About Having Your Period

    Menstruation — aka having your period — is when blood and tissue from your uterus comes out of your vagina. It usually happens once every month.

  4. Menstruation: 13 Period Facts You Need To Know - Health

    Sep 21, 2025 · Menstruation, also known as a period, occurs when your uterus sheds its lining, causing blood and mucus to discharge from the vagina. 1 This usually occurs once a month if …

  5. All About Periods (for Teens) | Nemours KidsHealth

    Periods usually last about 5 days. But a period can be shorter or last longer. How Often Does a Period Happen? Periods usually happen about once every 4–5 weeks.

  6. PERIOD | English meaning - Cambridge Dictionary

    A period is the time it takes for one complete repetition of a pattern that repeats. A second is used as the standard unit in most areas of science. At the Revolutionary War theme park, everyone …

  7. Menstruation | Period | MedlinePlus

    Feb 29, 2024 · Menstruation (or period) happens monthly. As the uterus sheds its lining, vaginal bleeding follows. Menstrual blood is made of blood and tissue.

  8. Menstrual Cycle (Normal Menstruation): Overview & Phases

    Dec 9, 2022 · Your menstrual cycle begins on the first day of your period. Your cycle prepares your body for a possible pregnancy. The average cycle lasts between 24 and 38 days.

  9. Period - definition of period by The Free Dictionary

    Of, belonging to, or representing a certain historical age or time: a period piece; period furniture.

  10. Menstruation & The Menstrual Cycle: Everything Girls Need To …

    Apr 20, 2025 · The menstrual cycle is about four weeks long, starting on the first day of bleeding and ending when the next period begins. However, it can vary greatly when girls first starts …