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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]
Called menarche, the first period occurs at the age of around twelve or thirteen years. [8] The average age is generally later in the developing world and earlier in the developed world. [42] In precocious puberty, it can occur as early as age eight years, [43] and this can still be normal. [44] [45]
An early period is usually the result of a short cycle, but it could also signal an irregular period. Here are the most common reasons your period is early. The Normal Length Of Your Cycle Could ...
Menstruation starting as young as 8 years would still be considered normal. [2] The average age of the first period is generally later in the developing world, and earlier in the developed world. [3] 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.
Variation of 21 days or more is considered very irregular. [6] Alternatively, a single menstruation cycle may be defined as irregular if it is less than 24 days or more than 38 days. [7] If they are regularly shorter than 21 days or longer than 36 (or 35) days, the condition is termed polymenorrhea or oligomenorrhea, respectively. [8]
Knowing the first day of a woman’s last menstrual period is useful in other ways. Dr. Arlene Go, an ob-gyn and specialist fellow studying endometriosis at Hera Biotech, tells Yahoo Life that it ...
The answer: period weight gain is normal, and it will start in the days before your period and go away once your period is over. Skip to main content. 24/7 Help. For premium support please call: ...
While the normal human menstrual cycle typically lasts 4 weeks (28 days, range 24–35 days) and consists of a follicular phase, ovulation, and a luteal phase followed by either menstruation or pregnancy, the anovulatory cycle has cycle lengths of varying degrees.