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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 ...
[18] [35] [36] As a result, "early puberty" in children as young as 8 and 9 is no longer considered abnormal, particularly with girls. Although it is not considered as abnormal, it may be upsetting to parents [ 21 ] [ 37 ] and can be harmful to children who mature physically at a time when they are immature mentally.
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 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 ...
Two of the most significant differences between puberty in females and puberty in males are the age at which it begins, and the major sex steroids involved, the androgens and the estrogens. Although there is a wide range of normal ages, females typically begin the process of puberty around age 10½; males at ages 11½—12.
Though premature thelarche and precocious puberty are distinct conditions, there is some overlap; an estimated 14 to 18 percent of females who exhibit premature thelarche will additionally develop precocious puberty. [1] [4] [5] Precocious puberty can be identified using a pelvic ultrasound to assess the size of ovaries and uterus relative to ...
Today, puberty begins between ages 8 and 13, on average, but some Black girls are seeing the onset as early as 5 years old. This is called precocious puberty, which is rare and affects 1% or less ...
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. It occurs in 1 in 5,000 to 1 in 10,000 people and can be caused by a lesion in the central nervous system or have no apparent cause. "Peripheral ...