Menarche (/məˈnɑːrki/ mə-NAR-kee; from Ancient Greek μήν (mēn) 'month' and ἀρχή (arkhē) 'beginning') is the first menstrual cycle, or first menstrual bleeding...

complete puberty at ages 16-17. The major landmark of puberty for females is menarche, the onset of menstruation, which occurs on average around age 12½. For...

normally last between 21 and 35 days, with a median length of 28 days. Menarche (the onset of the first period) usually occurs around the age of 12 years;...

compromised 16- to 20-year-old virgins after menarche. The highest rank comprised 14-year-old virgins before menarche. ("The Role of Sexual Lore in Taoism" begins...

breast tissue occurs during fetal development. Usually, females experience menarche about two years after thelarche has begun, with complete breast development...

sexual characteristics by age 13 with no menarche or normal secondary sexual characteristics but no menarche by 15 years of age. It may be caused by developmental...

pubertal timing may be influenced by weight, physical activity, and genetics. Menarche, a central event of female puberty, is associated with the father's absence...

body hair growth, breast development and menarche (the onset of menstruation). Most girls go through menarche between ages 12–13, and are then capable...

PMID 7132642. Frisch RE, Gotz-Welbergen AV, McArthur JW, et al. (1981). "Delayed menarche and amenorrhea of college athletes in relation to age of onset of training"...

Traditionally, when a young girl experiences her first menstruation that is menarche, she undergoes this rite called Bragoro. It is believed that this ushers...

pregnancy has not occurred. The first period, a point in time known as menarche, usually begins between the ages of 12 and 15. Menstruation starting as...

13. For females, it is menarche, the onset of menstruation, which occurs, on average, between ages 12 and 13. The age of menarche is influenced by heredity...

the dust') is performed where girls have sexual intercourse following menarche. This is seen in some regions of Malawi (mainly Chikwawa, Nsanje, and Salima...

spontaneous menarche, while 88% with 45,X0/47,XXX (the presence of a trisomy X cell line) experienced spontaneous thelarche and 66% spontaneous menarche. Unexpectedly...

often associated with the age of sexual maturity (puberty), especially menarche and spermarche. In others, it is associated with an age of religious responsibility...

pubic hair due to androgen stimulation), peak height velocity, and finally menarche (the onset of menses), which usually occurs around age 12 or 13. Phillips...

Fertility awareness Menstruation Culture and menstruation Feminine hygiene Menarche Menstrual cycle Menstrual aids Cloth menstrual pad Menstrual cup Tampon...

experiences his first ejaculation. It is considered to be the counterpart of menarche in females. Depending on upbringing, cultural differences, and prior sexual...

The Tongan archipelago has been inhabited for perhaps 3,000 years, since settlement in late Lapita times. The culture of its inhabitants has surely changed...

start of ovulation, which can happen before the first menstrual period (menarche). In healthy, well-nourished girls, the first period usually takes place...

her case in the medical journal La Presse Médicale, including that her menarche had occurred at eight months of age, in contrast to previous reports that...

menstruation. Different cultures and communities across the globe celebrate Menarche (first period). This practice is followed by Apache, Ojibwe and Hupa tribal...

abdominal pain in women include pelvic inflammatory disease, ovarian torsion, menarche, dysmenorrhea, endometriosis, and Mittelschmerz (the passing of an egg...

Fertility awareness Menstruation Culture and menstruation Feminine hygiene Menarche Menstrual cycle Menstrual aids Cloth menstrual pad Menstrual cup Tampon...

woman's "biological clock." The average age of a girl's first period (menarche) is 12 to 13 (12.5 years in the United States, 12.72 in Canada, 12.9 in...

11–12 and end around 16–17. The major landmark of puberty for females is menarche, the onset of menstruation, which occurs on average between ages 12 and...

in adolescence. A regular menstrual cycle can be set within a year of menarche. However, other studies suggest that it can take anywhere between 2 and...

to apply across the continents in the average age of onset of puberty (menarche/first menstruation and beginning of breast development) of girls from the...

Fertility awareness Menstruation Culture and menstruation Feminine hygiene Menarche Menstrual cycle Menstrual aids Cloth menstrual pad Menstrual cup Tampon...

measuring hormone levels in the blood or urine. Menopause is the opposite of menarche, the time when a girl's periods start. In the years before menopause, a...