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  1. 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.

  2. Menstrual cycle: What's normal, what's not - Mayo Clinic

    Apr 22, 2023 · What's typical? The menstrual cycle is counted from the first day of one period to the first day of the next. The cycle isn't the same for everyone. Menstrual bleeding might happen every 21 to …

  3. Periods - NHS

    A period is the part of the menstrual cycle when a woman bleeds from her vagina for a few days. For most women this happens around every 28 days, but it's common for periods to be more or less …

  4. 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]

  5. Normal Period: Timing, Flow, Symptoms, and Tracking - WebMD

    May 27, 2025 · In general, a normal cycle ranges from 21 to 34 days, and the average period lasts two to seven days. Irregularities can be caused by many things, from hormonal conditions to weight …

  6. Menstruation (Menstrual Cycle): Phases, What’s Normal

    Sep 4, 2025 · Menstruation is period bleeding, which is casually referred to as “having your period.” This happens monthly (for most females) during your fertile years, except during pregnancy.

  7. Stages of the Menstrual Cycle - Healthline

    Aug 17, 2018 · Every menstrual cycle is different. Some people get their period at the same time each month. Others are more irregular. Some bleed more heavily or for a longer number of days than others.

  8. Menstruation: Periods, the menstrual cycle, PMS, and treatment

    Apr 21, 2023 · Menstruation, or a period, is when the lining of the uterus sheds and leaves the body as blood. It marks the beginning of a menstrual cycle.

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

    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.

  10. 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.