menarche


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menarche

[mə′när·kē]
(physiology)
The onset of menstruation.
References in periodicals archive ?
To determine age at menarche, a retrospective method was used such that girls were asked if they had begun to menstruate and at what age it began.
While premeastrual symptoms can be attributed to other emotional events or physiologic disorders such as a hormone imbalance, faulty preparation for menarche can cause or contribute to premenstrual tension or painful menstruation," explains Dr.
forty five years old in 2007, unmarried, attained menarche at the age of 13 (early menarche) and menopausal.
Declines in the age of menarche up until the 1960s resulted from positive changes such as better nutrition and less infectious disease.
2 years (though it is not clear how far these differences in menarche can be traced back, since most of the historical documentation focuses on white American and European girls).
In addition, females who had experienced menarche by the sixth grade and females who were Hispanic were more likely to have had older boyfriends by seventh grade than to have had same-age boyfriends.
Major finding: Girls with first menarche before age 12 years with the least parental supervision have alcohol abuse rates three times higher than those with the most supervision.
Lead researcher Dr Alison Behie said reaching menarche at an earlier age increases the number of ovulation cycles a woman will have in her life, and puts her at greater risk of developing reproductive cancers possibly due to increased exposure to hormones such as oestrogen.
The role of estrogen levels in the development of the diseases were previously evaluated, but a clear link between menarche and health conditions later in life could not be established.
In the other hands, decreased the age onset of menarche influenced on issues, such as; premenstrual syndrome (PMS), dysmenorrheal, amenorrhea, breast & endometrial cancers.
I personally liked this expression since menarche (first blood) is the time when a girl is flowering into womanhood.