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Two of the most significant signs are: Breast development (“thelarche”) starts 2 to 3 years before the first period, often around age 8. Pubic hair development (“pubarche”) usually happens 1 to 2 years before the first period. The average age for pubarche is 11.6 years old.
What age is menarche? You’ll likely get your period between ages 11 and 14. In the U.S., most people experience menarche around 12 and 12 ½. Another way to predict when you’ll get your period is to think back to when you noticed changes in your breasts (chest). Menarche usually happens 2 to 2 to 2 ½ years after your breasts begin to develop.
Measures of menarche in this report include average age at first menstrual period, probability of first menstrual period at each age, and the relationship between age at menarche and age at first sexual intercourse. Results—The median age at menarche decreased from 1995 (12.1) to 2013–2017 (11.9).
The average age of menarche was about 12.7 years in Canada in 2001, [8] and 12.9 in the United Kingdom. [9] A study of girls in Istanbul, Turkey, in 2011 found the median age at menarche to be 12.7 years.
The average age of menarche, or a girl’s first period, in the U.S. is now 12, according to the most recent data from the Centers for Disease Control and Prevention’s National Health and Nutrition...
Most girls will get their first period sometime between the ages of 10 and 15, but it can happen as young as 8. Here’s what determines this age.
By 15 years of age, approximately 98% of females will have undergone menarche, signaling the maturation of the adolescent female body. Menarche is commonly associated with the ability to ovulate and reproduce; the onset of menarche does not guarantee either ovulation or fertility.
They found the average age at menarche — when an individual gets their first period — decreased from 12.5 years in 1950 to 1969 to 11.9 years in 2000 to 2005.
The standard age range for menarche is between 11 and 15. However, young women can also experience early menarche (i.e., before 11 years) or delayed menarche (i.e., after 16 years). Causes of early menarche. Some scientists speculate that increases in body weight during childhood account for the early onset of menarche.
Generally speaking, menarche occurs on average between the ages of 11 and 15. However, it can certainly happen either earlier or later for a particular young woman based on other factors like genetics, nutrition, socioeconomic environment, etc.