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Precocious puberty in girls begins before the age of 8. The youngest mother on record is Lina Medina , who gave birth at the age of either 5 years, 7 months and 17 days [ 11 ] or 6 years 5 months as mentioned in another report.
Precocious puberty on the rise. In the mid-19th century, girls had their first periods — which typically come about two years after they begin to show signs of breasts or pubic hair — at age ...
However, premature pubarche may also arise independently of adrenarche. Premature pubarche is a subset of precocious puberty which divide into 1) true precocious puberty that includes complete and central precocious puberty and 2) incomplete puberty which has 3 subsets: premature thelacrche, premature pubarche and isolated menarche. [13]
The researchers found that girls diagnosed with precocious puberty were more likely to have higher BMIs, with increased screen time (girls in the study averaged two hours per day on electronic ...
Though not all precocious puberty has a specific pathological cause, it may indicate a serious medical problem and is thoroughly evaluated. In most cases, the cause of precocious puberty cannot be identified. "Central precocious puberty" or "true precocious puberty" stems from early activation of the hypothalamic-pituitary-ovarian axis.
Another study, which was published in 2024, found that the average age that girls had their first periods decreased from 12.5 years old in 1950 to 1969 to 11.9 years old in 2000 to 2005.
The point at which a child becomes an adolescent is defined by the major onset of puberty. [2] [15] However, in some individuals (particularly females), puberty begins in the preadolescence years. [19] [20] Studies indicate that the onset of puberty has been one year earlier with each generation since the 1950s. [21]
As part of a science program on Norwegian public television , a series on puberty intended for 8–12-year-olds includes explicit information and images of reproduction, anatomy, and the changes that are normal with the approach of puberty. Rather than diagrams or photos, the videos were shot in a locker room with live nude people of all ages.