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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.
Menorrhagia (meno = prolonged, rrhagia = excessive flow/discharge) is an abnormally heavy and prolonged menstrual period. [13] Metrorrhagia is bleeding at irregular times, especially outside the expected intervals of the menstrual cycle. If there is excessive menstrual and uterine bleeding other than that caused by menstruation ...
Menstrual cycle The menstrual cycle is a series of natural changes in hormone production and the structures of the uterus and ovaries of the female reproductive system that makes pregnancy possible. The ovarian cycle controls the production and release of eggs and the cyclic release of estrogen and progesterone. The uterine cycle governs the preparation and maintenance of the lining of the ...
In many circumstances, menstrual intervals are prolonged, reaching 35–180 days (oligomenorrhea) or even longer . In other cases, menstruation may be fairly regular (eumenorrhea), more frequent (intervals of less than 21 days) or there may be a loss of menstrual pattern (menorrhagia, dysfunctional uterine bleeding).
Metrorrhagia, which generally refers to vaginal bleeding that occurs between the expected menstrual periods. [15] The distinction between irregular cycle lengths and metrorrhagia is not always clear. It may depend on whether the bleeding is regarded as marking the menstrual period (favoring the term "irregular cycles") or being separate from it ...
Menometrorrhagia, also known as heavy irregular menstrual bleeding, is a condition in which prolonged or excessive uterine bleeding occurs irregularly and more frequently than normal. It is thus a combination of metrorrhagia (intermenstrual bleeding) and menorrhagia (heavy/prolonged menstrual bleeding).
Polymenorrhagia, also known as frequent and heavy periods or frequent and heavy menstrual bleeding as well as epimenorrhagia or polyhypermenorrhea, is a menstrual disorder which refers to a combination of polymenorrhea (frequent menstrual bleeding) and menorrhagia (heavy menstrual bleeding).
The first day of menstrual bleeding is the date used for the last menstrual period (LMP). The typical length of time between the first day of one period and the first day of the next is 21 to 45 days in young women, and 21 to 35 days in adults. [2] [3] The average length is 28 days; one study estimated it at 29.3 days. [10]