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  2. Amenorrhea - Wikipedia

    en.wikipedia.org/wiki/Amenorrhea

    Physiological states of amenorrhoea are most commonly seen during pregnancy and lactation (breastfeeding). [1] Amenorrhoea is a symptom with many potential causes. [2] Primary amenorrhea is defined as an absence of secondary sexual characteristics by age 13 with no menarche or normal secondary sexual characteristics but no menarche by 15 years ...

  3. Menstruation - Wikipedia

    en.wikipedia.org/wiki/Menstruation

    Diagram illustrating how the uterus lining builds up and breaks down during the menstrual cycle 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. The menstrual cycle is characterized by the rise and fall of hormones. Menstruation is triggered by falling progesterone ...

  4. Menstrual disorder - Wikipedia

    en.wikipedia.org/wiki/Menstrual_disorder

    Normal menstrual cycle length is 22–45 days. [4] Amenorrhea is the absence of a menstrual period in a woman of reproductive age. Physiologic states of amenorrhoea are seen during pregnancy and lactation (breastfeeding). Outside of the reproductive years there is absence of menses during childhood and after menopause. [8]

  5. Hypomenorrhea - Wikipedia

    en.wikipedia.org/wiki/Hypomenorrhea

    Pregnancy can normally occur with this type of decreased flow during the period. The incidence of infertility is the same as in women with a normal blood flow. Constitutional scanty menstruation is perhaps best explained by assuming the presence of an unusual arrangement, or relative insensitivity, of the endometrial vascular apparatus.

  6. Polymenorrhea - Wikipedia

    en.wikipedia.org/wiki/Polymenorrhea

    Polymenorrhea, also known as frequent periods, frequent menstruation, or frequent menstrual bleeding, is a menstrual disorder in which menstrual cycles are shorter than 21 days in length and hence where menstruation occurs more frequently than usual. [1] [2] [3] Cycles are regular and menstrual flow is normal in the condition. [3]

  7. Vaginal bleeding - Wikipedia

    en.wikipedia.org/wiki/Vaginal_bleeding

    Regular monthly vaginal bleeding during the reproductive years, menstruation, is a normal physiologic process. During the reproductive years, bleeding that is excessively heavy (menorrhagia or heavy menstrual bleeding), occurs between monthly menstrual periods (intermenstrual bleeding), occurs more frequently than every 21 days (abnormal ...

  8. Heavy menstrual bleeding - Wikipedia

    en.wikipedia.org/wiki/Heavy_menstrual_bleeding

    A normal menstrual cycle is 21–35 days in duration, with bleeding lasting an average of 5 days and total blood flow between 25 and 80 mL. Heavy menstrual bleeding is defined as total menstrual flow >80ml per cycle, soaking a pad/tampon at least every 2 hours, changing a pad/tampon in the middle of the night, or bleeding lasting for >7 days.

  9. Anovulation - Wikipedia

    en.wikipedia.org/wiki/Anovulation

    Ovulatory menstrual periods tend to be regular and predictable in terms of cycle length, duration and heaviness of bleeding, and other symptoms. Ovulatory periods are often accompanied by midcycle symptoms such as mittelschmerz or premenstrual symptoms. In contrast, anovulation usually manifests itself as irregularity of menstrual periods, that ...